▁perspective . ▁His ▁contributions ▁allowed ▁him ▁to ▁be ▁hon ored ▁with ▁the ▁August ▁Voll mer ▁Award ▁not ▁only ▁for ▁his ▁research , ▁but ▁also ▁for ▁his ▁" just ice ▁or ▁to ▁the ▁treatment ▁or ▁prevent ion ▁of ▁criminal ▁or ▁del in quent ▁behavior ." ▁ ▁Biography ▁ ▁Klein ▁is ▁a ▁Professor ▁Emer it us ▁of ▁Soci ology ▁at ▁the ▁University ▁of ▁Southern ▁California . ▁He ▁was ▁born ▁on ▁September ▁ 4 , ▁ 1 9 3 0 . ▁He ▁took ▁part ▁in ▁the ▁fac ulty ▁at ▁the ▁Soci ology ▁Department ▁of ▁the ▁University ▁of ▁Southern ▁California ▁from ▁ 1 9 6 2 ▁to ▁ 1 9 9 8 . ▁From ▁ 1 9 7 1 ▁to ▁ 1 9 8 4 , ▁he ▁took ▁the ▁position ▁as ▁the ▁Chair man ▁of ▁the ▁University ▁of ▁Southern ▁California ▁Soci ology ▁Department . ▁ ▁Research ▁and ▁personal ▁views ▁ ▁Klein ▁was ▁most ▁notable ▁for ▁his ▁many ▁years ▁of ▁research ▁on ▁gang s . ▁He ▁defines ▁it ▁as ▁" any ▁dur able , ▁street - orient ed ▁youth ▁group ▁whose ▁invol vement ▁in ▁illegal ▁activity ▁is ▁part ▁of ▁its ▁group ▁identity ." ▁ ▁One ▁of ▁the ▁main ▁things ▁that ▁Klein ▁emphas izes ▁throughout ▁his ▁years ▁of ▁research ▁is ▁how ▁our ▁law ▁enfor cement ▁strateg ies ▁against ▁street ▁gang s ▁are ▁not ▁working . ▁In ▁an ▁audio ▁interview ▁on ▁the ▁show ▁Which ▁Way , ▁L . A . ?, ▁Klein ▁and ▁the ▁host , ▁Warren ▁Ol ney , ▁talk ▁about ▁two ▁major ▁gang - related ▁arr ests ▁that