nix whiteside argued november decided february preparing iowa trial murder charge respondent consistently told attorney although actually seen gun victim hand stabbed victim convinced victim gun respondent companions present stabbing told counsel seen gun gun found counsel advised respondent existence gun necessary establish claim reasonable belief victim gun nearby necessary even though gun actually present however preparation direct examination shortly trial respondent first time told counsel seen something metallic victim hand asked respondent said say saw gun dead respondent insisting testify saw something metallic counsel told testified falsely counsel duty advise felt respondent committing perjury counsel probably allowed impeach testimony seek withdraw representation respondent insisted committing perjury respondent ultimately testified originally contemplated admitting actually seen gun victim hand jury found respondent guilty respondent moved new trial claiming deprived fair trial counsel admonitions state saw gun something metallic denied motion hearing iowa affirmed conviction holding counsel actions permissible required iowa law respondent sought federal habeas corpus relief alleging denied effective assistance counsel attorney refusal allow testify proposed district denied relief appeals reversed concluding intent commit perjury communicated counsel alter defendant right effective assistance counsel counsel threatened violation client confidences violated effective representation standards set forth strickland washington held sixth amendment right criminal defendant assistance counsel violated attorney refuses cooperate defendant presenting perjured testimony trial pp strickland washington supra held obtain relief way federal habeas corpus claim deprivation effective assistance counsel sixth amendment movant must establish serious attorney error prejudice sixth amendment inquiry whether attorney conduct reasonably effective must careful narrow wide range attorney conduct acceptable sixth amendment restrictively constitutionalize particular standards professional conduct thereby intrude state proper authority define apply standards professional conduct applicable admits practice courts pp counsel conduct fell within wide range professional responses threatened client perjury acceptable sixth amendment counsel duty loyalty advocacy defendant cause limited legitimate lawful conduct compatible nature trial search truth although counsel must take reasonable lawful means attain client objectives counsel precluded taking steps way assisting client presenting false evidence otherwise violating law moreover accepted norms require lawyer disclose client perjury frauds upon iowa code also expressly permits withdrawal representation appropriate response attorney client threatens commit perjury pp appeals holding supported record since counsel action deprived respondent contemplated perjury whatever scope constitutional right testify elementary right extend testifying falsely right counsel includes right lawyer cooperate planned perjury breach professional duty counsel admonition respondent disclose respondent perjury pp matter law counsel conduct establish prejudice required relief strickland inquiry conflict interests involved one imposed attorney client proposal commit crime fabricating testimony kind conflict interest render representation constitutionally infirm pp burger delivered opinion white powell rehnquist joined brennan filed opinion concurring judgment post blackmun filed opinion concurring judgment brennan marshall stevens joined post stevens filed opinion concurring judgment post brent appel deputy attorney general iowa argued cause petitioner briefs thomas miller attorney general thomas mcgrane assistant attorney general patrick reilly grady appointment argued cause filed brief respondent briefs amici curiae urging reversal filed legal foundation america jean fleming powers david crump national association criminal defense lawyers michael bender bruce lyons john shepherd michael franck george kuhlman filed brief american bar association amicus curiae chief justice burger delivered opinion granted certiorari decide whether sixth amendment right criminal defendant assistance counsel violated attorney refuses cooperate defendant presenting perjured testimony trial whiteside convicted murder jury verdict affirmed iowa courts killing took place february cedar rapids iowa whiteside two others went one calvin love apartment late night seeking marihuana love bed whiteside companions arrived argument whiteside love marihuana ensued one point love directed girlfriend get piece another point got returned bed according whiteside testimony love started reach pillow moved toward whiteside whiteside stabbed love chest inflicting fatal wound whiteside charged murder counsel appointed objected lawyer initially appointed claiming felt uncomfortable lawyer formerly prosecutor gary robinson appointed immediately began investigation whiteside gave statement stabbed love latter pulling pistol underneath pillow bed upon questioning robinson however whiteside indicated actually seen gun convinced love gun pistol found premises shortly police search following stabbing revealed weapon victim family removed victim possessions apartment robinson interviewed whiteside companions present stabbing none seen gun incident robinson advised whiteside existence gun necessary establish claim reasonable belief victim gun nearby necessary even though gun actually present shortly trial whiteside consistently stated robinson actually seen gun convinced love gun hand week trial preparation direct examination whiteside first time told robinson associate donna paulsen seen something metallic love hand asked whiteside responded howard cook case gun say saw gun dead allow testify falsely perjury officers suborning perjury allowed advised duty advise felt committing perjury also probably allowed attempt impeach particular testimony app pet cert whiteside testified defense trial stated knew love gun believed love reaching gun acted swiftly admitted actually seen gun love hand robinson presented evidence love seen shotgun occasions police search apartment may careless victim family removed everything apartment shortly crime robinson presented evidence show basis whiteside asserted fear love gun jury returned verdict murder whiteside moved new trial claiming deprived fair trial robinson admonitions state saw gun something metallic trial held hearing heard testimony whiteside robinson denied motion trial made specific findings facts related robinson iowa affirmed respondent conviction state whiteside held right counsel present appropriate defenses extend using perjury attorney duty client extend assisting client committing perjury relying dr iowa code professional responsibility lawyers expressly prohibits attorney using perjured testimony iowa code iowa code criminalizes subornation perjury iowa concluded robinson actions permissible required commended robinson paulsen high ethical manner matter handled whiteside petitioned writ habeas corpus district southern district iowa petition whiteside alleged denied effective assistance counsel right present defense robinson refusal allow testify proposed district denied writ accepting state trial factual finding whiteside intended testimony perjurious concluded grounds habeas relief since constitutional right present perjured defense appeals eighth circuit reversed directed writ habeas corpus granted whiteside scurr appeals accepted findings trial judge affirmed iowa trial counsel believed good cause whiteside testify falsely acknowledged harris new york criminal defendant privilege testify behalf include right commit perjury nevertheless reasoned intent commit perjury communicated counsel alter defendant right effective assistance counsel robinson admonition whiteside inform whiteside perjury constituted threat violate attorney duty preserve client confidences according appeals threatened violation client confidences breached standards effective representation set strickland washington also concluded strickland prejudice requirement satisfied implication prejudice conflict robinson duty loyalty client ethical duties petition rehearing en banc denied judges gibson ross fagg bowman dissenting whiteside scurr granted certiorari reverse ii right accused testify defense relatively recent origin latter part preceding century criminal defendants country common law considered disqualified giving sworn testimony trial reason interest party case see ferguson georgia morris studies history american law ed iowa among adhered rule disqualification state laffer iowa end century however disqualification finally abolished statute federal courts act mar ch stat see thayer chapter legal history massachusetts harv rev although never explicitly held criminal defendant due process right testify behalf cases several circuits held right long assumed see curtis bifield cert denied also suggested right exists corollary fifth amendment privilege compelled testimony see harris new york supra see also ferguson concurring opinion frankfurter concurring opinion clark strickland washington held obtain relief way federal habeas corpus claim deprivation effective assistance counsel sixth amendment movant must establish serious attorney error prejudice show error must established assistance rendered counsel constitutionally deficient counsel made errors serious counsel functioning counsel guaranteed defendant sixth amendment strickland show prejudice must established claimed lapses counsel performance rendered trial unfair undermine confidence outcome trial strickland acknowledged sixth amendment require particular response counsel problem may arise rather sixth amendment inquiry whether attorney conduct reasonably effective counteract natural tendency fault unsuccessful defense reviewing claim ineffective assistance must indulge strong presumption counsel conduct falls within wide range reasonable professional assistance giving shape perimeters range reasonable professional assistance strickland mandates revailing norms practice reflected american bar association standards like guides determining reasonable guides turn next question presented definition range reasonable professional responses criminal defendant client informs counsel perjure stand must determine whether setting robinson conduct fell within wide range professional responses threatened client perjury acceptable sixth amendment strickland recognized counsel duty loyalty overarching duty advocate defendant cause ibid plainly duty limited legitimate lawful conduct compatible nature trial search truth although counsel must take reasonable lawful means attain objectives client counsel precluded taking steps way assisting client presenting false evidence otherwise violating law principle consistently recognized unequivocal terms expositors norms professional conduct since first canons professional ethics adopted american bar association canon provided client corporate individual however powerful cause civil political however important entitled receive lawyer render service advice involving disloyalty law whose ministers disrespect judicial office bound uphold corruption person persons exercising public office private trust deception betrayal public must observe advise client observe statute law announced intention client commit crime included within confidences attorney bound respect representation client lawyer shall knowingly use perjured testimony false evidence counsel assist client conduct lawyer knows illegal fraudulent rule scope representation lawyer shall counsel client engage assist client conduct lawyer knows criminal fraudulent standards confirm legal profession accepted attorney ethical duty advance interests client limited equally solemn duty comply law standards professional conduct specifically ensures client may use false evidence special duty attorney prevent disclose frauds upon derives recognition perjury much crime tampering witnesses jurors way promises threats undermines administration justice see burdick law crime offense perjury crime recognized common law made felony statute including iowa iowa code see generally torcia wharton criminal law ed attorney aids false testimony questioning witness perjurious responses anticipated risks prosecution subornation perjury iowa code universally agreed minimum attorney first duty confronted proposal perjurious testimony attempt dissuade client unlawful course conduct model rules professional conduct rule comment wolfram client perjury cal rev statement directly point found commentary model rules professional conduct heading false evidence false evidence offered client however conflict may arise lawyer duty keep client revelations confidential duty candor upon ascertaining material evidence false lawyer seek persuade client evidence offered offered false character immediately disclosed model rules professional conduct rule comment emphasis added essence brief amicus american bar association reviewing practices long accepted ethical lawyers circumstance may lawyer either advocate passively tolerate client giving false testimony course consistent governance trial conduct long called search truth suggestion sometimes made lawyer must believe client judge sense means lawyer honorably party way give aid presenting known perjury considering robinson representation respondent light accepted norms professional conduct discern failure adhere reasonable professional standards sense make deprivation sixth amendment right counsel whether robinson conduct seen successful attempt dissuade client committing crime perjury whether seen threat withdraw representation disclose illegal scheme robinson representation whiteside falls well within accepted standards professional conduct range reasonable professional conduct acceptable strickland appeals assumed purpose decision whiteside given false testimony counsel intervened opinion denying rehearing en banc presume appellant testified falsely counsel actions prevented whiteside testifying falsely hold counsel action deprived appellant due process effective assistance counsel counsel actions also impermissibly compromised appellant right testify defense conditioning continued representation counsel confidentiality upon appellant restricted testimony appeals holding robinson action deprived whiteside due process effective assistance counsel supported record since robinson action deprived whiteside contemplated perjury nothing counsel way undermined whiteside claim believed victim reaching gun similarly record gives support holding robinson action also impermissibly compromised whiteside right testify defense conditioning continued representation confidentiality upon whiteside restricted testimony record fact shows contrary whiteside testify restricted restrained testifying falsely aided robinson developing basis fear love reaching gun robinson divulged client communications compelled response whiteside challenge quality performance see case attorney successfully dissuaded client committing crime perjury paradoxically even accepting conclusion iowa trial whiteside proposed testimony criminal act appeals held robinson efforts persuade whiteside commit crime improper first forcing impermissible choice right counsel right testify second compromising client confidences robinson threat disclose contemplated perjury whatever scope constitutional right testify elementary right extend testifying falsely harris new york assumed right accused testify defense refuse went hold hat privilege construed include right commit perjury see knox cf dennis voluntarily taken stand petitioner obligation speak truthfully paucity authority subject right may explained fact notion never responsibly advanced right counsel includes right lawyer cooperate planned perjury lawyer cooperate risk prosecution suborning perjury disciplinary proceedings including suspension disbarment robinson admonitions client sense said forced respondent impermissible choice right counsel right testify proposed permissible choice testify falsely defense counsel take steps persuade criminal defendant testify truthfully withdraw deprives defendant neither right counsel right testify truthfully havens supra made clear defendants testify must testify truthfully suffer consequences accused proposed resort perjury produce false evidence one consequence risk withdrawal counsel record accused enjoyed continued representation within bounds reasonable professional conduct fact exercise right testify denied right assistance counsel presentation false testimony similarly discern breach professional duty robinson admonition respondent disclose respondent perjury crime perjury setting indistinguishable substance crime threatening tampering witness juror defendant informed counsel arranging bribe threaten witnesses members jury right insist counsel assistance silence counsel limited advising conduct attorney duty confidentiality totally covers client admission guilt extend client announced plans engage future criminal conduct see clark short responsibility ethical lawyer officer key component system justice dedicated search truth essentially whether client announces intention bribe threaten witnesses jurors commit procure perjury system justice worthy name tolerate lesser standard rule adopted appeals seemingly require attorney remain silent client committed perjury wholly incompatible established standards ethical conduct laws iowa contrary professional standards promulgated state position advocated petitioner contrary wholly consistent iowa standards professional conduct law overwhelming majority courts codes professional ethics since breach recognized professional duty follows deprivation right assistance counsel strickland standard hold matter law counsel conduct complained establish prejudice required relief second strand strickland inquiry although defendant need establish attorney deficient performance likely altered outcome order establish prejudice strickland defendant must show reasonable probability counsel unprofessional errors result proceeding different according strickland reasonable probability probability sufficient undermine confidence outcome ibid strickland noted benchmark claim fairness adversary proceeding judging prejudice likelihood different outcome defendant entitlement luck lawless decisionmaker whether persuaded compelled desist perjury whiteside valid claim confidence result trial diminished desisting contemplated perjury even assume jury might believed perjury follow whiteside prejudiced attempt evade prejudice requirement strickland whiteside relies cases involving conflicting loyalties counsel cuyler sullivan held defendant obtain relief without pointing specific prejudicial default part counsel provided established attorney actively represent ing conflicting interests indeed conflict quite different kind one imposed attorney client proposal commit crime fabricating testimony without put dead remotely kind conflict interests dealt cuyler sullivan even case suggest multiple representations necessarily resulted active conflict rendering representation constitutionally infirm conflict client proposal counsel ethical obligation gives rise presumption counsel assistance prejudicially ineffective every guilty criminal conviction suspect defendant sought obtain acquittal illegal means anyone doubt practices problems spawned rule volumes litigation generate whiteside attorney treated whiteside proposed perjury accord professional standards since whiteside truthful testimony prejudiced result trial appeals error direct issuance writ habeas corpus must reversed reversed footnotes whiteside version events pretrial meeting considerably cryptic went questions two come conflict regard whether weapon say conflict got impression one time maybe go along happening gun involved maybe pull trial app pet cert appeals agreed district finding respondent properly exhausted claims state although respondent pressed claim iowa denial due process right fair trial denial sixth amendment right counsel appeals accepted district conclusion sixth amendment claim exhausted since proceedings futile currently exist two different codifications uniform standards professional conduct model code professional responsibility originally adopted american bar association subsequently adopted many cases modification nearly every state recent model rules professional conduct adopted american bar association since promulgation american bar association model rules adopted arizona arkansas delaware minnesota missouri montana nevada new hampshire new jersey north carolina washington see lawyers manual professional conduct new jersey arizona montana minnesota missouri delaware washington north carolina arkansas new hampshire nevada iowa one adopted form model code professional responsibility yet adopt model rules see iowa code professional responsibility lawyers brief amicus american bar association supports petitioner makes point referring history codes professional conduct promulgated preamble current version ethical standards recognizes difficult choices may confront attorney sensitive concurrent duties client legal system within framework rules many difficult issues professional discretion arise issues must resolved exercise sensitive professional moral judgment guided basic principles underlying rules preamble model rules professional conduct evolution contemporary standards promulgated american bar association early draft reflects compromise suggesting disclosure intended perjury made course trial withdrawal counsel raise difficult questions mistrial holding counsel option let defendant take stand decline affirmatively assist presentation perjury traditional direct examination instead counsel stand mute defendant undertook present false version narrative form words unaided direct examination conduct thought signal least presiding judge attorney considered testimony false seeking disassociate course additionally counsel permitted discuss known false testimony closing arguments see aba standards criminal justice proposed standard ed courts treating subject rejected approach insisted rigorous standard see curtis mckissick dodd florida bar eighth circuit case ninth circuit expressed approval free narrative standards whiteside scurr lowery cardwell rule finally promulgated current model rules professional conduct rejects participation passive role whatever counsel allowing perjury presented without challenge appeals also determined robinson efforts persuade whiteside testify truthfully constituted impermissible threat testify client find support threat testify whiteside acting counsel record reflects testimony robinson admonished whiteside withdrew probably allowed attempt impeach particular testimony whiteside testified falsely trial accepted version conversation true see curtis committee professional ethics crary iowa state robinson thornton state henderson mckissick king utah carroll hinds state bar cal contra whiteside scurr case lowery cardwell justice brennan concurring judgment constitutional authority establish rules ethical conduct lawyers practicing state courts enjoy statutory grant jurisdiction legal ethics accordingly surprising emphasizes must careful narrow wide range conduct acceptable sixth amendment restrictively constitutionalize particular standards professional conduct thereby intrude state proper authority define apply standards professional conduct applicable admits practice courts ante read saying another way tell lawyers behave courts unless federal rights violated unfortunately seems unable resist temptation sharing legal community vision ethical conduct let mistake essay regarding constitutes correct response criminal client suggestion perjure pure discourse without force law justice blackmun observes issue thorny one post issue presented case lawyers judges bar associations students others understand problem decided join justice blackmun concurrence agree respondent failed prove kind prejudice necessary make claim strickland washington justice blackmun justice brennan justice marshall justice stevens join concurring judgment defense attorney act faced client intends commit perjury trial long controversial issue believe federal habeas corpus case challenging state criminal conviction appropriate vehicle attempting resolve thorny problem defendant argues denied effective assistance counsel lawyer dissuaded committing perjury question properly presented whether lawyer actions deprived defendant fair trial sixth amendment meant guarantee since believe respondent case suffered injury justifying federal habeas relief concur judgment february emmanual charles whiteside stabbed calvin love death trial whiteside claimed direct examination testified love bedroom stabbing occurred ery much dark app stabbed love argument believed love attack weapon think calvin gun definitely thought think calvin reputation brother reputation prior conversation calvin choice think gun told girl friend give piece retreat whiteside charged murder convicted murder sentenced years imprisonment moved new trial contending attorneys gary robinson donna paulsen improperly coerced testimony whiteside claimed seen gun prevented testifying fact evidentiary hearing motion whiteside testified told robinson first meeting seen weapon love hand weeks later robinson informed whiteside weapon found according whiteside told say thought seen gun rather fact seen one whiteside got impression one time maybe go along happening gun involved maybe pull trial app pet cert robinson testimony contradicted whiteside according robinson whiteside initially claim seen gun rather claimed convinced love one roughly week trial however course reviewing whiteside testimony whiteside made reference seeing something metallic think ever say gun end donna asked first time ever mentioned either response howard cook case gun say saw gun dead explained time necessary gun physically present one two say perjury part never time indicated gun three allow four advised duty advise also probably allowed attempt impeach particular testimony told need lie happened good valid defense facts related us felt present good case facts stated us ibid trial rejected whiteside motion new trial find ing facts testified paulsen mr robinson app iowa affirmed state whiteside whiteside sought federal habeas relief district southern district iowa parties agreed rest record made proceedings chief judge stuart held trial judge factual finding whiteside committed perjury testified trial actually seen gun fairly supported record thus entitled presumption correctness see since whiteside constitutional right perjure denied neither fair trial effective assistance counsel app pet cert appeals eighth circuit reversed whiteside scurr recognized issue whether robinson behaved ethically rather whether whiteside deprived effective assistance counsel appeals view robinson breached obligations confidentiality zealous advocacy imposed defense counsel sixth amendment addition appeals concluded robinson actions impermissibly compromised whiteside constitutional right testify behalf conditioning continued representation confidentiality whiteside limiting testimony recognized strickland washington defendant must normally demonstrate attorney behavior professionally unreasonable prejudiced attorney unprofessional behavior noted strickland washington recognized limited presumption prejudice counsel burdened actual conflict interest adversely affects performance see quoting cuyler sullivan whiteside shown robinson obligations iowa code professional responsibility conflicted client wishes threat testify whiteside adversely affected whiteside undermin ing fundamental trust lawyer client necessary effective representation petitioner motion rehearing en banc denied vote whiteside scurr dissent judge john gibson joined judges ross fagg bowman argued whiteside failed show cognizable prejudice cuyler sullivan inapposite finding conflict interest required making untenable assumption whiteside possessed right testify falsely robinson threat adverse effect trial since whiteside testified fully defense moreover result proceeding different whiteside permitted testify wished separate dissent judge fagg joined judges ross john gibson bowman addressed performance prong strickland robinson admonition whiteside testify truthfully simply viewed creating conflict interest robinson presented full zealous defense trial although robinson warning whiteside may strident communicated client manner client understood ii district found trial judge statement find facts testified paulsen robinson factual finding whiteside perjured testified trial actually saw gun victim hand app pet cert factual finding state entitled presumption correctness whiteside overcome respondent never attempted rebut presumption claiming factfinding procedure employed iowa considering new trial motions sense deprived full fair hearing failed provide sufficient basis denying motion although respondent argument large part assumes precluded testimony false see brief respondent contends first record fairly support conclusion intended perjure claimed first written statement love pulling pistol pillow time stabbing see app second whether robinson sufficient knowledge conclude going commit perjury mixed question law fact presumption correctness apply neither contention overcomes presumption correctness due state finding first trial judge implicit decision credit written statement fairly supported robinson testimony written statement prepared whiteside alone time initial meeting week trial whiteside never claimed seen gun see app pet cert second finding properly accorded presumption correctness courts whiteside proposed testimony deliberately untruthful state whiteside lower courts purport presume correctness iowa holding concerning mixed question respondent identifies whether robinson response whiteside proposed testimony deprived whiteside effective representation approaches case standard requires us every case determine perimeters range reasonable professional assistance ante strickland washington explicitly contemplates different course although discussed performance component ineffectiveness claim prior prejudice component reason deciding ineffective assistance claim approach inquiry order even address components inquiry defendant makes insufficient showing one particular need determine whether counsel performance deficient examining prejudice suffered defendant result alleged deficiencies easier dispose ineffectiveness claim ground lack sufficient prejudice expect often course followed touchstone claim prejudice allegation counsel behavior something deprive defendant fair trial trial whose result reliable strickland washington effect robinson threat whiteside trial whiteside testify falsely saw gun love hand thus must ask whether confidence outcome whiteside trial way undermined knowledge refrained presenting false testimony see long ago noted perjured relevant testimony war justice since may produce judgment resting truth therefore denied tends defeat sole ultimate objective trial michael faced claim defendant concerning prosecutorial use evidence consistently held conviction obtained knowing use perjured testimony fundamentally unfair must set aside reasonable likelihood false testimony affected judgment jury omitted agurs see also napue illinois pyle kansas mooney holohan similarly viewed defendant use testimony antithetical system justice permitted prosecution introduce otherwise inadmissible evidence combat see havens oregon hass harris new york walder proposition presenting false evidence contribute withholding evidence detract reliability criminal trial simply untenable doubt true juries sometimes acquitted defendants convicted sometimes based decisions acquit testimony defendants lied witness stand also true double jeopardy clause bars reprosecution acquitted defendants although occasion prosecuted perjury see williams privilege every criminal defendant testify defense construed include right commit perjury harris new york extent whiteside claim rests assertion acquitted able testify falsely whiteside claims right law simply recognize defendant entitlement luck lawless decisionmaker even lawless decision reviewed strickland washington since whiteside deprived neither fair trial specific constitutional rights designed guarantee fair trial suffered prejudice appeals erred concluding prejudice presumed strickland washington found presumption appropriate case attorney labored actual conflict interest adversely affected performance quoting cuyler sullivan case however actual conflict existed already discussed whiteside right robinson help presenting perjured testimony moreover whiteside identified right insist robinson keep confidential plan commit perjury see committee professional ethics conduct iowa state bar assn crary iowa prior cases reversed convictions involved conflicts infringed defendant legitimate interest vigorous protection constitutional rights see wood georgia defense attorney paid defendants employer might pursued employer interest litigating test case rather obtaining leniency clients prosecution glasser defense attorney simultaneously represented two defendants failed object certain potentially inadmissible evidence prosecution witness apparent attempt minimize one codefendant guilt whiteside legitimate interest conflicted robinson obligations suborn perjury adhere iowa code professional responsibility addition lawyer interest presenting perjured testimony entirely consistent whiteside best interest whiteside lied stand risked future perjury prosecution moreover testimony contradicted testimony eyewitnesses fact gun ever found light impeachment jury might concluded whiteside lied well lack premeditation thus might convicted murder judge believed whiteside lied taken whiteside perjury account setting sentence grayson face dangers attorney reasonably conclude dissuading client committing perjury client best interest comported standards professional responsibility short whiteside failed show kind conflict poses danger values zealous loyal representation embodied sixth amendment presumption prejudice therefore unwarranted light respondent failure show cognizable prejudice see need grade counsel performance strickland washington federal issue case whether robinson behavior deprived whiteside effective assistance counsel whether robinson behavior conformed particular code legal ethics whether attorney response sees client plan commit perjury violates defendant sixth amendment rights may depend many factors certain attorney proposed testimony false stage proceedings attorney discovers plan ways attorney may able dissuade client name three complex interaction factors likely vary case case makes inappropriate blanket rule defense attorneys must reveal threaten reveal client anticipated perjury except rarest cases attorneys adopt role judge jury determine facts ex rel wilcox johnson pose danger depriving clients zealous loyal advocacy required sixth amendment therefore troubled implicit adoption set standards professional responsibility attorneys state criminal proceedings see ante course compelling interest integrity criminal trials justify regulating length attorney may go seeking client acquittal american bar association implicit suggestion brief amicus curiae find association model rules professional conduct govern attorney responsibilities addressed wrong audience decide attorneys conduct state criminal proceedings responsibility extends ensuring restrictions state enacts infringe defendant federal constitutional rights thus follow suggestion made joint brief amici curiae filed certiorari stage allow maintain differing approaches complex ethical question brief state indiana et al amici curiae signal merit asking first whether defendant shown adverse prejudicial effect inquiring attorney performance avoids unnecessary federal interference state regulation bar conclude respondent case failed show effect join judgment entitled federal habeas relief see callan david professional responsibility duty confidentiality disclosure client misconduct adversary system rutgers rev rieger client perjury proposed resolution constitutional ethical issues rev compare freedman professional responsibility criminal defense lawyer three hardest questions rev aba standards criminal justice proposed standard ed approved standing committee association standards criminal justice yet submitted house delegates noonan purposes advocacy limits confidentiality rev aba model rules professional conduct rule comment stated question governed solely iowa code professional responsibility effect time trial case authoritatively interpreted iowa iowa last word questions state law code professional responsibility species state law whiteside motion new trial rested recantation testimony trial matter iowa law trial judge faced motion new trial based witness recantation trial testimony judge must decide whether recantation believable trial required believe recantation must make decision basis whole trial matters presented hearing motion premised thereon believes post conviction statements false reasonably well satisfied testimony given witness trial false deny motion liberty shift upon shoulders another jury responsibility seek truth matter state compiano iowa say lawyer threat reveal client confidences may never effects defendant trial cf ex rel wilcox johnson finding violation sixth amendment attorney threat reveal client purported perjury caused defendant take stand whiteside deprived right testify defense since suggestion made whiteside testimony restricted way beyond fact claim falsely seen gun love hand must confess somewhat puzzled implicit suggestion whether defendant constitutional right testify defense remains open question ante true ferguson georgia expressly declined address question defendant constitutional right testify case properly raise issue since repeatedly referred existence right see jones barnes defendant ultimate authority make certain fundamental decisions regarding case whether testify behalf brooks tennessee whether defendant testify important tactical decision well matter constitutional right harris new york imagine presented state statute prohibited defendant testifying trial rule violates sixth fourteenth amendments well perhaps fifth fact state apparently asked trial impose sentence years see tr judge sentenced whiteside years imprisonment instead say attorney ethical obligations never conflict defendant right effective assistance example attorney previously represented one state witnesses continuing obligation former client reveal confidential information received course prior representation continuing duty conflict obligation present client defendant state witnesses zealously see lowenthal successive representation criminal lawyers yale comparison case wilcox illustrative robinson testified detail factors led conclude respondent assertion seen gun false see tr july iowa found good cause strong support robinson conclusion state whiteside moreover robinson gave credence parts whiteside account although found implausible unsubstantiated clearly false see tr july contrast wilcox defense counsel actually informed judge believed client intended lie threat withdraw middle trial led defendant take stand appeals found evidence record case indicating wilcox intended perjure characterized counsel beliefs private conjectures guilt innocence client justice stevens concurring judgment justice holmes taught us word skin living thought fact may also life perspective appellate judge case tried evidence sifted another judge particular fact may clear certain piece crystal small diamond trial lawyer however must often deal mixtures sand clay even pebble seems clear enough first glance may take different hue handful gravel view case appears perfectly clear respondent intended commit perjury lawyer knew lawyer duty client perjured testimony ruin otherwise meritorious case take extreme measures prevent perjury occurring lawyer successful unanimous remote perspective pellucidly clear client suffered legally cognizable prejudice nevertheless beneath surface case areas uncertainty resolved today lawyer certainty change client recollection harbinger intended perjury well judicial review apparent certainty tempered realization reflection honest witness may recall sincerely believe recalls details previously overlooked similarly review lawyer pretrial threat expose perjury yet committed indeed may prevented threat means review way threat may actually carried thus one convinced lawyer actions proper way provide client effective representation without confronting much difficult questions lawyer must may client given testimony lawyer believe answer questions may well colored particular circumstances attending actual event aftermath justice blackmun preserved questions another day understand imply adverse criticism lawyer representation client join opinion concurring judgment