5.—(1) A person carrying on casual trading at any place shall—

(a) display the number of the casual trading licence relating to the trading in such manner as may be determined by the local authority and in such a position at the place as to be clearly visible and easily legible to members of the public at the place, and

(b) if so requested, produce the licence on demand to any person at the place.

(2) A person who contravenes this section shall be guilty of an offence.