19.—(1) Any person who —
(a)intentionally obstructs any person acting in the execution of this Part of these Regulations; or
(b)without reasonable cause, fails to give to any person acting in the execution of this Part of these Regulations any assistance or information which that person may reasonably require of him for the performance of his functions under this Part of these Regulations,
shall be guilty of an offence.
(2) Any person who, in purported compliance with any such requirement as is mentioned in paragraph (1)(b)—
(a)furnishes information which he knows to be false or misleading in a material particular; or
(b)recklessly furnishes information which is false or misleading in a material particular,
shall be guilty of an offence.
(3) Nothing in paragraph (1)(b) shall be construed as requiring any person to answer any question or give any information if to do so might incriminate him.