Police in New South Wales are not empowered to arbitrarily require your identification, but do have the power to require it if:
1. They hold a reasonable suspicion you can assist in the investigation of a serious offence,
2. You are a driver subjected to random traffic stop for drink or drug driving, or are suspected of a traffic offence,
3. You are a driver or passenger in a motor vehicle reasonably suspected of being used in a serious offence,
4. You are responsible for, own or have custody of a motor vehicle suspected of having been used in a traffic offence,
5. You are under 18 and police reasonably suspect you of having alcohol in a public place,
6. Police are serving a fine default warrant,
7. A specific order such as a Public Health Order requires you to produce identification, or
8. You are under arrest.