Summary and Background Part 8: Enforcement Duties of enforcement officers Section 290: Duty to state name and purpose, etc
719.In conjunction with section 289, enforcement officers are also obliged to state their name, the power they are intending to use and reason for its use whenever they are requested to do so, although the officer may defer complying with the request if the immediate situation requires it (for example, if an officer thinks that the request is a delaying tactic to avoid the officer discovering an offence being committed at that moment in time). Someone assisting the enforcement officer need not give their name, but would need to say what power that person was proposing to exercise and the grounds for so doing, if so requested.