N.1 One who aids and abets or counsels or procures someone else to commit a crime. A secondary party to an offence – i.e. one who participates in it but does not bring about the * actus reus directly ...
aid and abet
Help and encourage someone, perhaps in a dubious or nefarious enterprise. Abet, which is also used in formal legal contexts, is related to an Old French term meaning ‘encourage (a hound) to bite’.
N.Hiding a criminal or suspected criminal. This will normally constitute the offence of impeding apprehension or prosecution. See also escape.