Article 20 Offences
A person shall be guilty of an offence against the Act who, without lawful authority or excuse, proof of which shall lie on him—
(a)
contravenes any provision of this order or any provision of a licence or of a notice issued, served or exhibited under it; or
(b)
fails to comply with any such provision, or with any condition of such a licence or notice; or
(c)
causes or permits any such contravention or non-compliance.