accessory after the fact
Legal term for a person who assists a criminal after the crime has been committed, such as by hiding evidence or helping the offender escape.
See also: 事後従犯
An accessory after the fact can be charged for harboring a criminal after the crime.
Refers to the act of being an accessory after the fact, while 事後従犯人 refers to the person who commits that act.
Compound of 事後 (after the fact), 従犯 (accessory), and 人 (person).