A person who—
(a) aids a person in lawful custody to escape, or to attempt to escape, from lawful custody; or
(b) conveys anything to a person in lawful custody, or to a place where a person is or will be in lawful custody, with the intention of aiding a person to escape from lawful custody; or
(c) frees a person from lawful custody without authority;is guilty of a crime.
Penalty—Maximum penalty—imprisonment for 7 years.