▁for ens ic ▁science ▁from ▁George ▁Washington ▁University . ▁▁ ▁He ▁spent ▁more ▁than ▁thirty ▁three ▁years ▁with ▁the ▁F BI , ▁investig ating ▁some ▁of ▁the ▁ag ency ' s ▁most ▁famous ▁cases , ▁including ▁the ▁Great ▁Br inks ▁Rob ber y ▁in ▁ 1 9 5 0 ▁and ▁the ▁ 1 9 6 4 ▁mur ders ▁of ▁three ▁young ▁civil ▁rights ▁workers , ▁which ▁became ▁known ▁as ▁the ▁" Miss iss ippi ▁Burn ing " ▁case . ▁He ▁served ▁as ▁an ▁expert ▁witness ▁in ▁numerous ▁tri als , ▁test ifying ▁on ▁his ▁knowledge ▁of ▁chem istry , ▁to xic ology ▁and ▁ar son . ▁For ▁more ▁than ▁ 2 0 ▁years , ▁G orm ley ▁super vised ▁a ▁program ▁that ▁developed ▁the ▁use ▁of ▁lie ▁det ector ▁tests ▁for ▁investig ative ▁purposes . ▁▁ ▁He ▁retired ▁from ▁the ▁F BI ▁in ▁ 1 9 7 3 , ▁and ▁moved ▁tempor arily ▁to ▁Maine ▁to ▁direct ▁the ▁Maine ▁State ▁Police ▁Crime ▁Labor atory . ▁ ▁After ▁returning ▁to ▁the ▁Washington , ▁D . C . ▁area ▁he ▁worked ▁in ▁the ▁research ▁and ▁training ▁divisions ▁of ▁the ▁International ▁Association ▁of ▁Chief s ▁of ▁Police . ▁In ▁addition ▁to ▁his ▁work ▁at ▁the ▁I AC P , ▁G orm ley ▁worked ▁as ▁a ▁consult ant ▁for ▁law ▁enfor cement ▁matters ▁in ▁his ▁later ▁years . ▁ ▁The ▁former ▁president ▁of ▁the ▁Mid - At l antic ▁Association ▁of ▁For ens ic ▁Scient ists , ▁G orm ley ▁also ▁taught ▁at ▁George ▁Washington ▁University ▁and