Section 112 of the Principal Act is hereby amended -

(a) by the substitution for subsection (1) of the following subsection:

"(1)

(a) A person shall not use or take possession of a mechanically propelled vehicle without the consent of the owner thereof or other lawful authority.

(b) Where possession of a vehicle has been taken in contravention of this subsection, a person who knows of the taking shall not allow himself to be carried in or on it without the consent of the owner thereof or other lawful authority.", and

(b) by the insertion after "is committing" in subsection (6) of "or has committed".