8(1)In proceedings for an offence under paragraph 4, 5 or 7 above it shall be a defence for the Concessionaires to prove that they took all reasonable precautions and exercised all due diligence to avoid the commission of the offence.U.K.
(2)If in any case the defence provided by sub-paragraph (1) above involves the allegation that the commission of the offence was due to the act or default of another person, the Concessionaires shall not, without leave of the court, be entitled to rely on that defence unless, within a period of seven days before the hearing, they have served on the prosecutor a notice in writing giving such information identifying or assisting in the identification of that other person as was then in their possession.