18 U.S.C. § 3 Accessory after the fact
Whoever, knowing that an offense against the United States 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.
Except as otherwise expressly provided by any Act of Congress, an accessory after
the fact shall be imprisoned not more than one-half the maximum term of
imprisonment or (notwithstanding section 3571) fined not more than one-half the
maximum fine prescribed for the punishment of the principal, or both; or if the principal
is punishable by life imprisonment or death, the accessory shall be imprisoned not
more than 15 years.