39.—(1) Any person who—
(a)wilfully obstructs an authorised person in the execution of any of his duties or functions under any provision of these Regulations; or
(b)without reasonable cause fails to give an authorised person acting as aforesaid any assistance or information which the authorised person may reasonably require of him for the purpose of the performance by the authorised person of his functions under these Regulations,
shall be guilty of an offence.
(2) If any person, in giving an authorised person any such information as is mentioned in paragraph (1)(b) above, gives any information which he knows to be false, he shall be guilty of an offence.
(3) Nothing in these Regulations shall be construed as requiring a person to answer any question or give any information if to do so might incriminate him.