without reasonable excuse contravenes any of the conditions of a street trading licence or a temporary licence; or

in connection with an application for a street trading licence or a temporary licence F1or in completing a notice in accordance with subsection (4) of section 27B (seizure: notices) of this Act makes a statement which he knows to be false in a material particular; or

resists or intentionally obstructs an authorised officer in the execution of his duties under this Act; or

fails on demand without reasonable excuse in the case of an individual licence holder to produce to an authorised officer or to a constable his licence or other approved form of identity issued by the council for the purposes of this Act, or, in the case of an individual carrying on ice cream trading under a licence granted to a company incorporated under the Companies Acts or to a partnership or unincorporated association, to produce the photograph required by subsection (8) of section 9 (Street trading licences) of this Act,