15.—(1) A person is guilty of an offence if —
(a)they intentionally obstruct an authorised officer acting in the execution of these Regulations;
(b)without reasonable excuse, they fail to give an authorised officer acting in the execution of these Regulations any assistance or information which that person may reasonably require of them for the performance of the authorised officer’s functions under these Regulations;
(c)they give to an authorised officer acting in the execution of these Regulations any information which they know, or ought reasonably to know, to be false or misleading; or
(d)without reasonable excuse, they fail to produce a record when required to do so by an authorised officer acting in the execution of these Regulations.
(2) Nothing in paragraph (1)(b) is to be construed as requiring any person to answer any question or give any information if to do so might incriminate them.