Offences
28.—(1) If an installation owner, installation manager or employer fails to comply with an obligation imposed upon him by these Regulations he shall be guilty of an offence.
(2) In proceedings for an offence under this regulation, it shall be a defence for the person charged to prove–
(a)that he exercised all due diligence to prevent the commission of the offence; and
(b)that the relevant failure to comply was committed without his consent connivance or wilful default.