It is an offence under the Dog and Cat Management Act 1995 for a dog to attack or harass an animal or person.
If you or your animal is attacked by another dog you should report the attack to Council immediately. Council can investigate dog attacks and impose penalties on the dog owner as appropriate. Expiations of $315.00 may also be applied to the dog owner. The more information you supply to Council in relation to the attack, the more likely it is that the dog can be identified.
In the case of a serious attack you should also call the police who are authorised under the Dog and Cat Management Act and can provide immediate assistance in an emergency.