Police Powers and Responsibilities Act 2000

A senior police officer may authorise the use of out-of-control event powers (an event authorisation) in relation to an event if the police officer reasonably believes—

the event is an out-of-control event; or

the event is likely to become an out-of-control event.

The event authorisation must be written and state the following—

the date and time the authorisation is given;

the location of the event;

the circumstances that led the senior police officer to authorise using the out-of-control event powers in relation to the event;

the restrictions, if any, on using the out-of-control event powers in relation to the event.

However, the event authorisation is not invalid merely because it is not in writing if the senior police officer makes a written record as required under subsection (2) at the first reasonable opportunity after a police officer exercises an out-of-control event power under the authorisation.

The event authorisation has effect for 24 hours or a lesser period decided, after the authorisation is given, by—

the senior police officer who gave the authorisation; or

another senior police officer.