81Offences by third parties

81 Offences by third parties (1) If an agreement prohibits a land owner from doing an act of a kind specified in the agreement, a person who is not a party to the agreement must not do the act so prohibited, while the agreement is in force. 1. 5 penalty units. (2) In proceedings for an offence under subsection (1) it is a defence if the person charged proves— (a) that— (i) in respect of the agreement there has been a contravention of a provision of section 80; and (ii) the person did not know of the existence of the agreement; or (b) the act alleged to constitute the offence was expressly authorised by or under an Act.