Emergencies aside, the range if incidents at handover for access is limitless. And human nature being what it is, spiteful or foolish parties may provoke a situation which constitutes a breach of order. There is a surreal quality about an injunction not to commit a crime, which is what AVOs are all about. The defendant is restrained from assault and malicious damage, both of them crimes. The maximum penalty for breach of AVO is two years imprisonment.
Malicious damage carries the same penalties.
Therefore, the offender who beats his wife is liable to the same penalty whether subject to an AVO or not. Well, apart from introducing a ghastly Americanism into our Crimes Act , no. The police prosecutor is. The Common Law right of a wife, to decline to give evidence against her husband, is specifically removed by the legislation. If she fails to show up at Court, the case may still survive because the police will be worried that the husband has spirited her away for the day.