weinstein bradford argued decided december respondent paroled appeals upheld claim action petitioner parole board members constitutionally entitled certain procedural rights connection petitioners consideration eligibility parole case moot present issue capable repetition yet evading review since action class action demonstrated probability respondent subjected parole system super tire engineering mccorkle distinguished vacated remanded per curiam respondent bradford sued petitioner members north carolina board parole district eastern district north carolina claiming petitioners obligated fourteenth amendment constitution accord certain procedural rights considering eligibility parole although respondent sought certification action class action district refused certify dismissed complaint respondent appeal appeals fourth circuit sustained claim constitutionally entitled procedural rights connection petitioners consideration application parole conclusion appeals odds decisions several courts appeals granted certiorari june case set oral argument december calendar respondent filed suggestion mootness petitioners filed response undisputed respondent temporarily paroled december status ripened complete release supervision march date forward plain respondent interest whatever procedures followed petitioners granting parole conceding fact petitioners urge issue capable repetition yet evading review term used cases dealing mootness petitioners rely super tire engineering mccorkle support contention case moot posture parties quite different petitioner employer engaged cyclically recurring bargaining union representing employees respondent state official continuously following policy paying unemployment compensation benefits strikers even though particular strike occasion filing lawsuit terminated held enough petitioner employer showed existence immediate definite governmental action policy adversely affected continues affect present interest noted great majority economic strikes last long enough complete judicial review controversies engender instant case respondent challenged governmental action policy question longer present interest affected policy sosna iowa reviewed detail historical developments mootness doctrine southern pacific terminal icc first case enunciate capable repetition yet evading review branch law mootness held short duration interstate commerce commission order challenged virtually impossible litigate validity order prior expiration fact additional fact party probability subject kind order future review allowed even though order question expired terms case followed moore ogilvie sec medical committee human rights dunn blumstein applied original concept southern pacific terminal icc different fact situations including class action dunn sosna decided absence class action capable repetition yet evading review doctrine limited situation two elements combined challenged action duration short fully litigated prior cessation expiration reasonable expectation complaining party subjected action instant case class action clearly satisfy latter element petitioners continue administer north carolina parole system respect given moment subject jurisdiction demonstrated probability respondent among number littleton appearing therefore case moot judgment appeals vacated case remanded district instructions dismiss complaint indianapolis school jacobs munsingwear ordered