ACCESSORY AFTER THE FACT - Whoever,
knowing that an offense has been committed, receives,
relieves, comforts or assists the offender in order
to hinder or prevent his apprehension, trial or punishment,
is an accessory after the fact; one who knowing a
felony to have been committed by another, receives,
relieves, comforts, or assists the felon in order
to hinder the felon's apprehension, trial, or punishment.
U.S.C. 18