martinez ryan director arizona department corrections argued october decided march arizona prisoners may raise claims ineffective assistance trial counsel state collateral proceedings direct review petitioner martinez first state collateral proceeding counsel raise claim federal habeas review new counsel martinez argued received ineffective assistance trial first state collateral proceeding also claimed constitutional right effective attorney collateral proceeding first place raise claim ineffective assistance trial district denied petition finding arizona preclusion rule adequate independent ground barring federal review coleman thompson attorney errors postconviction proceeding qualify cause excuse procedural default appeals ninth circuit affirmed held state law claims must raised collateral proceeding procedural default bar federal habeas hearing claims collateral proceeding counsel counsel proceeding ineffective pp given precise question whether ineffective assistance collateral proceeding claim may provide cause procedural default federal habeas proceeding case resolve question left open coleman whether prisoner constitutional right effective counsel collateral proceedings however protect prisoners potentially legitimate claims necessary recognize narrow exception coleman unqualified statement attorney ignorance inadvertence postconviction proceeding qualify cause excuse procedural default namely inadequate assistance counsel collateral proceedings may establish cause pp federal hear martinez claim establish cause excuse procedural default prejudice violation federal law coleman held postconviction attorney negligence qualify attorney prisoner agent principal bears risk agent negligent conduct maples thomas ante however coleman counsel alleged error appeal collateral proceeding thus claims addressed state habeas trial marks key difference collateral proceedings collateral proceedings collateral proceeding first designated proceeding prisoner raise claim collateral proceeding equivalent prisoner direct appeal claim state habeas decides claim merits addressed claim defendants generally ill equipped represent brief counsel opinion addressing claim halbert michigan attorney errors appeal direct review may provide cause excuse procedural default attorney appointed state ineffective prisoner denied fair process opportunity comply state procedures obtain adjudication merits claim without adequate representation collateral proceeding prisoner similar difficulties vindicating substantial claim true state appoint attorney collateral proceeding prisoner inability present claim particular concern right effective trial counsel bedrock principle nation justice system allowing federal habeas hear claim ineffective assistance trial attorney errors attorney absence caused procedural default collateral proceeding acknowledges equitable matter collateral proceeding undertaken counsel ineffective counsel may sufficient ensure proper consideration given substantial claim thus follows state requires prisoner raise claim ineffective assistance trial collateral proceeding prisoner may establish cause procedural default claim two circumstances state courts appoint counsel collateral proceeding claim appointed counsel collateral proceeding claim raised ineffective strickland washington overcome default prisoner must also demonstrate underlying claim substantial jurisdictions procedures ensure counsel appointed substantial claims likely attorneys qualified perform perform according prevailing professional norms may enforce procedural default federal habeas proceedings pp limited qualification coleman implicate stare decisis concerns coleman holding remains true except collateral proceedings claims ineffective assistance trial holding case put significant strain state resources state facing question cause apparent default may answer claim insubstantial limited circumstances recognized also reflect importance right effective assistance trial claims may implicate fundamentals adversary system antiterrorism effective death penalty act speak question presented thus bar martinez asserting attorney error cause procedural default pp whether martinez attorney first collateral proceeding ineffective whether claim substantial well question prejudice questions remain open decision remand reversed remanded kennedy delivered opinion roberts ginsburg breyer alito sotomayor kagan joined scalia filed dissenting opinion thomas joined opinion notice opinion subject formal revision publication preliminary print reports readers requested notify reporter decisions washington typographical formal errors order corrections may made preliminary print goes press luis mariano martinez petitioner charles ryan director arizona department corrections writ certiorari appeals ninth circuit march justice kennedy delivered opinion state arizona permit convicted person alleging ineffective assistance trial counsel raise claim direct review instead prisoner must bring claim state collateral proceedings instant case however petitioner postconviction counsel raise claim first collateral proceeding indeed filed statement reviewing case found meritorious claims helpful petitioner federal habeas review new counsel petitioner sought argue received ineffective assistance counsel trial first phase state collateral proceeding state collateral proceeding first place challenge conviction grounds ineffective assistance petitioner maintained constitutional right effective attorney collateral proceeding petitioner frames question case constitutional one narrow still dispositive formulation whether federal habeas may excuse procedural default claim claim properly presented state due attorney errors collateral proceeding jury convicted petitioner luis mariano martinez two counts sexual conduct minor age prosecution introduced videotaped forensic interview victim martinez stepdaughter also put evidence victim nightgown traces martinez dna part defense martinez introduced evidence victim recantations including testimony victim grandmother mother second videotaped interview victim denied abuse victim also denied abuse testified trial app pet cert explain inconsistencies prosecution expert testified recantations accusations caused often reluctance part victim mother lend support child claims pet cert considering conflicting evidence jury convicted martinez sentenced two consecutive terms life imprisonment possibility parole years app pet cert state appointed new attorney represent martinez direct appeal ibid pet cert made numerous arguments martinez behalf including claim evidence insufficient newly discovered evidence warranted new trial app pet cert arizona law however permit argue direct appeal trial counsel ineffective state spreitz arizona instead requires claims ineffective assistance trial reserved state collateral proceedings martinez direct appeal pending attorney began state collateral proceeding filing notice relief martinez schriro rule crim proc despite initiating proceeding counsel made claim trial counsel ineffective later filed statement asserting find colorable claims cf state smith state trial hearing collateral proceeding gave martinez days file pro se petition support postconviction relief raise claims believed counsel overlooked see smith supra martinez respond later alleged unaware ongoing collateral proceedings counsel failed advise need file pro se petition preserve rights state trial dismissed action postconviction relief effect affirming counsel determination martinez meritorious claims arizona appeals affirmed martinez conviction arizona denied review year half later martinez represented new counsel filed second notice postconviction relief arizona trial martinez claimed trial counsel ineffective failing challenge prosecution evidence argued example trial counsel objected expert testimony explaining victim recantations called expert witness rebuttal martinez also faulted trial counsel pursuing exculpatory explanation dna nightgown app brief opposition martinez petition dismissed part reliance arizona rule barring relief claim raised previous collateral proceeding see rule crim proc martinez theory went asserted claims ineffective assistance trial counsel first notice postconviction relief arizona appeals agreed denied martinez relief failed raise claims first collateral proceeding arizona declined review martinez appeal martinez sought relief district district arizona filed petition writ habeas corpus raising claims martinez acknowledged state courts denied claims relying state procedural rule doctrine procedural default prohibit federal reaching merits claims see wainwright sykes overcome hurdle federal review martinez argued cause default first postconviction counsel ineffective failing raise claims first notice postconviction relief failing notify martinez actions see magistrate judge recommendation district denied petition ruling arizona preclusion rule adequate independent ground bar federal review app pet cert martinez shown cause excuse procedural default district reasoned coleman thompson attorney errors postconviction proceeding qualify cause default see appeals ninth circuit affirmed appeals relied general statements coleman absent right counsel collateral proceeding attorney errors proceeding establish cause procedural default expanding district opinion appeals citing coleman noted general rule constitutional right counsel collateral proceedings appeals recognized coleman reserved ruling whether exception rule cases collateral review first place prisoner present challenge conviction quoting coleman supra concluded nevertheless controlling cases established basis exception certiorari granted ii coleman thompson supra left open appeals case addressed question constitutional law whether prisoner right effective counsel collateral proceedings provide first occasion raise claim ineffective assistance trial proceedings called purposes opinion collateral proceedings coleman suggested though without holding constitution may require provide counsel collateral proceedings cases state collateral review first place prisoner present challenge conviction coleman noted makes collateral proceeding prisoner one appeal claim emphasis deleted internal quotation marks omitted may justify exception constitutional rule right counsel collateral proceedings see douglas california holding must appoint counsel prisoner first appeal case however resolve whether exception exists constitutional matter precise question whether ineffective assistance collateral proceeding claim ineffective assistance trial may provide cause procedural default federal habeas proceeding protect prisoners potentially legitimate claim ineffective assistance trial counsel necessary modify unqualified statement coleman attorney ignorance inadvertence postconviction proceeding qualify cause excuse procedural default opinion qualifies coleman recognizing narrow exception inadequate assistance counsel collateral proceedings may establish cause prisoner procedural default claim ineffective assistance trial federal habeas courts reviewing constitutionality state prisoner conviction sentence guided rules designed ensure judgments accorded finality respect necessary preserve integrity legal proceedings within system federalism rules include doctrine procedural default federal review merits claims including constitutional claims state declined hear prisoner failed abide state procedural rule see coleman supra sykes supra state invocation procedural rule deny prisoner claims precludes federal review claims among requisites state procedural rule nonfederal ground adequate support judgment rule firmly established consistently followed see walker martin slip beard kindler slip doctrine barring procedurally defaulted claims heard without exceptions prisoner may obtain federal review defaulted claim showing cause default prejudice violation federal law see coleman dispute arizona procedural bar successive petitions independent adequate state ground thus federal hear martinez claim establish cause excuse procedural default coleman held egligence part prisoner postconviction attorney qualify maples thomas slip coleman reasoned attorney prisoner agent principles agency law principal bears risk negligent conduct part agent maples supra slip coleman however present occasion apply principle determine whether attorney errors collateral proceedings may qualify cause procedural default alleged failure counsel coleman appeal collateral proceeding proceeding prisoner claims addressed state habeas trial see coleman recognized marks key difference collateral proceedings kinds collateral proceedings attorney errs collateral proceedings likely state level hear prisoner claim direct review state proceeding consider adjudicate claim see fox film muller murdock memphis wall cf coleman supra counsel errors collateral proceeding establish cause excuse procedural default federal habeas proceeding review prisoner claims true counsel errs kinds postconviction proceedings counsel errors proceedings preclude review prisoner claim claim addressed one whether trial appellate direct review trial collateral proceeding see coleman supra collateral proceeding first designated proceeding prisoner raise claim ineffective assistance trial collateral proceeding many ways equivalent prisoner direct appeal claim state habeas looks merits clai ineffective assistance addressed claim defendants pursuing review generally ill equipped represent brief counsel opinion addressing claim error halbert michigan see douglas coleman recognized attorney errors appeal direct review may provide cause excuse procedural default attorney appointed state pursue direct appeal ineffective prisoner denied fair process opportunity comply state procedures obtain adjudication merits claims see evitts lucey douglas supra without help adequate attorney prisoner similar difficulties vindicating substantial claim claims ineffective assistance trial often require investigative work understanding trial strategy issue raised direct review moreover prisoner asserting claim collateral proceeding rely opinion prior work attorney addressing claim halbert present claim ineffective assistance trial accordance state procedures prisoner likely needs effective attorney true state appoint attorney assist prisoner collateral proceeding prisoner unlearned law may comply state procedural rules may misapprehend substantive details federal constitutional law describing educational background prison population confined prison prisoner position develop evidentiary basis claim ineffective assistance often turns evidence outside trial record prisoner inability present claim trial error particular concern claim one ineffective assistance counsel right effective assistance counsel trial bedrock principle justice system deemed obvious truth idea person haled poor hire lawyer assured fair trial unless counsel provided gideon wainwright indeed right counsel foundation adversary system defense counsel tests prosecution case ensure proceedings serve function adjudicating guilt innocence protecting rights person charged see powell alabama defendant requires guiding hand counsel every step proceedings without though guilty faces danger conviction know establish innocence effective trial counsel preserves claims considered appeal see fed rule crim proc federal habeas proceedings edwards carpenter imply state acted impropriety reserving claim ineffective assistance collateral proceeding see massaro claims often depend evidence outside trial record direct appeals without evidentiary hearings may effective proceedings developing factual basis claim ibid abbreviated deadlines expand record direct appeal may allow adequate time attorney investigate claim see primus structural reform criminal defense cornell rev rules give days time conviction file request expand record appeal thus sound reasons deferring consideration claims stage decision without consequences state ability assert procedural default later proceedings deliberately choosing move claims outside process counsel constitutionally guaranteed state significantly diminishes prisoners ability file claims within context state procedural framework counsel ineffectiveness collateral proceeding qualifies cause procedural default rules prisoner may establish cause excuse procedural default elaborated exercise discretion mccleskey zant see also coleman supra sykes reed ross fay noia overruled part sykes supra rules reflect equitable judgment prisoner impeded obstructed complying state established procedures federal habeas excuse prisoner usual sanction default see strickler greene reed supra allowing federal habeas hear claim ineffective assistance trial counsel attorney errors absence attorney caused procedural default collateral proceeding acknowledges equitable matter collateral proceeding undertaken without counsel ineffective counsel may sufficient ensure proper consideration given substantial claim follows state requires prisoner raise claim collateral proceeding prisoner may establish cause default claim two circumstances first state courts appoint counsel collateral proceeding claim ineffective assistance trial second appointed counsel collateral proceeding claim raised ineffective standards strickland washington overcome default prisoner must also demonstrate underlying claim substantial one say prisoner must demonstrate claim merit cf cockrell describing standards certificates appealability issue jurisdictions place procedures ensure counsel appointed substantial claims including arizona appoint counsel every first collateral proceeding see alaska stat rule crim proc stat rules crim proc stat ann rule laws lexis code ann appoint counsel claims require evidentiary hearing claims ineffective assistance often see rule crim proc la code crim proc art west rule crim proc rule civ proc appoint counsel claims merit state habeas trial deems record worthy development see ark rule crim proc rule crim proc del super rule crim proc indiana rule remedies proc rev stat ann dist rule crim proc hust state idaho hardin arkansas ark per curiam jensen state nd wu kostal people likely attorneys appointed courts qualified perform perform according prevailing professional norms may enforce procedural default federal habeas proceedings limited qualification coleman implicate usual concerns upsetting reliance interests protected stare decisis principles montejo louisiana coleman held attorney negligence postconviction proceeding establish cause remains true except collateral proceedings claims ineffective assistance counsel trial coleman involve occasion attorney erred collateral proceeding respect claim ineffective trial counsel years since coleman decided held coleman applies circumstances like one holding put significant strain state resources faced question whether cause apparent default state may answer claim insubstantial merit wholly without factual support attorney collateral proceeding perform constitutional standards one differences constitutional ruling equitable ruling case constitutional ruling provide defendants freestanding constitutional claim raise require appointment counsel collateral proceedings impose system appointing counsel every state require reversal state collateral cases direct review state courts system appointing counsel conform constitutional rule equitable ruling contrast permits variety systems appointing counsel collateral proceedings permits state elect appointing counsel collateral proceedings asserting procedural default raising defense merits federal habeas proceedings addition state collateral cases direct review state courts unaffected ruling case rule coleman governs limited circumstances recognized holding case concern attorney errors kinds proceedings including appeals collateral proceedings second successive collateral proceedings petitions discretionary review state appellate courts see carrier extend attorney errors proceeding beyond first occasion state allows prisoner raise claim ineffective assistance trial even though collateral proceeding may deficient reasons addition limited nature qualification coleman adopted reflects importance right effective assistance trial counsel arizona decision bar defendants raising claims direct appeal holding addresses constitutional claims presented case state barred defendant raising claims direct appeal arizona contends antiterrorism effective death penalty act aedpa bars martinez asserting attorney error cause procedural default aedpa refers attorney error collateral proceedings speak question presented case section provides ineffectiveness incompetence counsel federal state collateral proceedings shall ground relief cause however synonymous ground relief finding cause prejudice entitle prisoner habeas relief merely allows federal consider merits claim otherwise procedurally defaulted case example martinez ground relief claim claim aedpa bar martinez relies ineffectiveness postconviction attorney excuse failure comply arizona procedural rules independent basis overturning conviction short precludes martinez relying ineffectiveness postconviction attorney ground relief stop martinez using establish cause holland florida slip iii state law claims ineffective assistance trial counsel must raised collateral proceeding procedural default bar federal habeas hearing substantial claim ineffective assistance trial collateral proceeding counsel counsel proceeding ineffective case martinez attorney collateral proceeding filed notice akin anders brief effect conceding martinez lacked meritorious claim including claim ineffective assistance trial see anders california martinez argued federal habeas filing anders brief constituted ineffective assistance appeals decide whether rather held martinez right attorney collateral proceeding attorney errors collateral proceeding establish cause failure comply state rules thus appeals determine whether martinez attorney first collateral proceeding ineffective whether claim ineffective assistance trial counsel substantial address question prejudice issues remain open decision remand judgment appeals reversed case remanded proceedings consistent opinion ordered scalia dissenting luis mariano martinez petitioner charles ryan director arizona department corrections writ certiorari appeals ninth circuit march justice scalia justice thomas joins dissenting let get straight concern values federalism preserve ability provide prompt justice light longstanding holding constitutional right counsel state collateral review portrays admirable exercise judicial restraint abstains holding constitutional right counsel state habeas meant case one us failing provide assistance counsel providing assistance counsel falls strickland standard constitute cause excusing procedural default see strickland washington instead taking radical step holds equitable reasons case one us failing provide assistance counsel providing assistance counsel falls strickland standard constitutes cause excusing procedural default result course precisely ah perhaps explanation action today amounts praiseworthy pronounces excuse usual rule default state habeas raising claim limited invention new constitutional right counsel precisely fashion precisely consequences moreover one really believes newly announced equitable rule remain limited cases dime worth difference principle cases many cases initial state habeas first opportunity particular claim raised claims newly discovered prosecutorial misconduct example see brady maryland claims based newly discovered exculpatory evidence newly discovered impeachment prosecutorial witnesses claims asserting ineffective assistance appellate counsel soothing assertion ante holding addresses constitutional claims presented case insults reader moreover even today holding logic restricted claims essentially practical consequences holding counsel constitutionally required despite suggestion contrary see ante rule adopts calls question common state practice appointing counsel first collateral proceedings see ante sure call question lawfulness practice sanity prisoner goes state collateral proceedings without counsel fails raise claim failure defaulted default preclude federal habeas review merits claim since ineffective assistance trial counsel monotonously standard claim federal habeas duly convicted defendant ever effectively represented whoever advises state guilty ineffective assistance counsel appointment counsel cases lest failure raise claim state excused state propelled federal habeas review adequacy representation occurred many years say pretended avoidance requiring counsel course even appointment counsel guarantee state criminal proceeding concluded without federal retrial appointment counsel may said avoid federal review adequacy representation occurred years ago original trial since today opinion condition exclusion federal habeas condition apply appointment counsel constitutionally required remain determined federal habeas review whether counsel effective thus consequence today decision always forced litigate federal habeas defaulted claims knows claims either validity defaulted claim counsel appointed effectiveness counsel counsel appointed notes many already provide appointment counsel first collateral challenges though proves forces today eminently reasonable fails point currently counsel raise claim end matter issue procedurally defaulted virtue today opinion however cases capital punishment issue assuredly proceed federal habeas issue whether counsel ineffective failing raise issue meaning supposedly comforting statement likely attorneys appointed courts qualified perform perform according prevailing professional norms may enforce procedural default federal habeas proceedings ante emphasis added precise said federal habeas courts finally rejected claims may enforce procedural default federal habeas proceedings possibly imagine basis confidence ante put significant strain state resources principal escape route federal habeas existence adequate state ground whether counsel appointed state collateral review raises claim federal habeas review proceed practical effect may make much difference noncapital cases except squandering state taxpayers money defendant stay prison continuing serve sentence federal habeas review grinds capital cases effectively reduce sentence giving defendant many years live beyond lives innocent victims whose life snuffed process federal habeas may consume guarantee assertion ineffective assistance trial counsel made capital cases date causing today holding execution sentence deferred either claim claim appointed counsel ineffective failing make claim worked way federal system us believe today holding limited qualification coleman thompson ante much repudiation longstanding principle governing procedural default coleman cases consistently applied coleman involved habeas petitioner contention attorney failure file timely notice appeal state habeas proceeding resulted procedural default claims raised proceeding cause excuse default federal habeas petitioner case contended whether violation constitutional right effective counsel occurred consequence long attorney conduct fell short effectiveness standard set forth strickland see whereas coleman flatly repudiated claim inconsistent precedent see today majority wholeheartedly embraces ante rejection argument coleman compelled jurisprudence pertaining cause excusing procedural default particular murray carrier see coleman supra involved failure defendant attorney raise claim direct appeal failure constitute cause explained objective factor external defense emphasis added requirement reflects judgment forced undergo federal habeas review defaulted claim unless factor attributable prisoner obstructed compliance state procedures see although externality requirement north star jurisprudence today opinion whisper name doubt impossible say martinez procedural default caused factor external defense coleman carrier set forth clear terms attorney error constitutes external factor attorney error attorney acts fails act furtherance litigation acting petitioner agent coleman supra carrier supra rule inconsistent system representative litigation party deemed bound acts irwin department veterans affairs internal quotation marks omitted attorney error amounts constitutionally ineffective assistance counsel error imputed state state failed comply constitutional requirement provide effective counsel rendering error external petitioner coleman supra carrier supra accordingly martinez appears recognize see brief petitioner cases require absent determination arizona violated constitution failing provide effective counsel attorney error provide cause excuse procedural default rather apply rule adopts approach coleman explicitly addressed rejected essentially disclaims need give full consideration principle stare decisis coleman involve collateral proceeding claim ineffective assistance trial counsel see ante rather like saying marbury madison cranch establish authority review constitutionality new federal statute involved different enactment reasoning marbury categorical reasoning coleman carrier attorney error external factor constituting cause excusing default unless state constitutional obligation provide effective counsel majority seriously considered relevant stare decisis factors see montejo louisiana difficulty justifying today decision escape demands stare decisis saying rules regarding excuse procedural default reflect equitable judgment elaborated exercise discretion ante equity lawlessness discretion license cast aside established jurisprudence reaffirmed term see maples thomas slip negligence part prisoner postconviction attorney qualify quoting coleman supra ourts equity must governed rules precedents less courts law lonchar thomas quoting missouri jenkins thomas concurring noticeably absent equitable analysis moreover consideration reason rule comity respect courts must accord judgments see edwards carpenter doctrine reflects understanding federal review defaulted claims may circumvent jurisdictional limits direct review state interest enforcing laws lee kemna kennedy dissenting quoting coleman supra unlike today decision carrier coleman took account significant costs federal habeas review imposes including reduction finality litigation frustration sovereign power punish offenders attempts honor constitutional rights carrier supra quoting engle isaac criminal conviction final society forgotten crime justifies case arrives federal habeas state conviction sentence issue never mind underlying crime already dim memory average years old years capital cases adhere precedents prevent bad situation becoming worse ii granted certiorari parties addressed arguments following question whether defendant state criminal case prohibited state law raising direct appeal claim ineffective assistance trial counsel right raise claim first proceeding federal constitutional right effective assistance first counsel specifically respect claim pet cert decision answer question avoid costs constitutional holding imposed avoid need confront established rule right counsel collateral proceedings avoid procedural default martinez advocates favor exception rule prisoner seeks right counsel collateral proceeding argument previously declined address see coleman argument quite clearly foreclosed precedent pennsylvania finley murray giarratano stated prisoners constitutional right counsel mounting collateral attacks upon convictions finley supra see also plurality opinion rule pennsylvania finley apply differently capital cases noncapital cases kennedy concurring judgment indicating constitution categorically require provide counsel inmates seeking state habeas review though finley may involved claims raised direct review see giarratano supra stevens dissenting doubt aware often limit collateral review process issues previously litigated argued direct appeal brief respondent finley giarratano involved class action filed addressed general assertion constitution requires appointment counsel collateral attacks capital convictions see plurality opinion rejected assertion without qualification dissenting opinion made precise argument martinez asserts state law claims including ineffective assistance trial counsel ordinarily heard direct review relegated postconviction proceedings stevens dissenting see also brief respondents giarratano virginia capital habeas proceedings death row inmates seek assert claims addressed direct appeal thus announcing categorical rule finley see giarratano supra plurality opinion reaffirming giarratano knew full well collateral proceeding may present first opportunity prisoner raise constitutional claim follow rule case reject martinez argument constitutional right counsel collateral proceedings far avoiding consequences constitutional holding imposed today holding practical matter requires appoint counsel collateral proceedings boot eliminates assurance escaping review claims appointed counsel fails present despite protestations contrary decision radical alteration habeas jurisprudence impose considerable economic costs impair ability provide justice timely fashion balance strikes finality criminal judgments need provide review defaulted claims ineffective assistance trial counsel grossly underestimates frequency claims federal habeas incentives argue since free pass federal habeas appointed counsel ineffective failing raise claims balance might close though disregard established jurisprudence merely held uncounseled failure raise ineffective assistance trial counsel constitute default adding rule counseled failure raise may also provide excuse creates monstrosity reasons respectfully dissent footnotes also seeks restrict holding cases state deliberately cho sen move asserted claim outside process ante line lacks principled basis last relevant difference cases state says certain claims brought collateral review cases claims nature brought collateral review since manifest appellate process complete cases establish constitute cause failure raise issue direct review excuse must objective factor external defense see infra factual basis claim available stage less factor state requiring claim brought collateral review see murray carrier asserted limitation makes sense opinion means state deliberately chos en move claims outside process fails reopen process order entertain claims radical change require surely prescribed language clearer today opinion contains says establish cause prisoner must demonstrate claim substantial apparently means claim least merit see ante explain substantiality standard comes differs normal rule prisoner must demonstrate actual prejudice avoid enforcement procedural default see coleman thompson whatever standard examination adequacy representation substituted summary dismissal reason procedural default also claims ante equitable ruling unlike constitutional ruling require reversal state collateral cases direct review state courts counsel appointed surely mean suggest failure appoint counsel collateral review like unconstitutional failure appoint counsel trial require entire conviction set aside inconceivable either one two things happen either reviewing state able inquire prejudice improvement federal habeas make inquiry equitable solution requires else appellate state remand collateral proceeding counsel said equitable ruling effectively requires anyway equitable ruling boon see king cheesman ostrom final technical report habeas litigation district courts documenting percentage habeas petitions included claims dismissed various procedural reasons administrative office courts habeas corpus petitions disposed procedurally period ending september reporting appeals noncapital habeas cases procedural default accounted largest percentage procedural dispositions exception denial certificate appealability available clerk case file see king cheesman ostrom final technical report reporting average interval state judgment federal habeas filing sample federal habeas cases filed