Terrorism (Police Powers) Act 2002

For the purposes of this Part, a person is a terrorism suspect if there are reasonable grounds for suspecting that—

the person has committed or will commit a terrorist act, or

the person is or has been involved in preparing or planning for a terrorist act, or

the person possesses a thing that is connected with the commission of, or the preparation or planning for, a terrorist act.

This section extends to a future terrorist act even if any of the following has not been identified—

the identity of the persons who will commit the terrorist act,

the kind of terrorist act that will be committed,

the place where or the time when the terrorist act will be committed.

This section extends to terrorist acts committed, and acts done in preparation or planning for terrorist acts, before the commencement of this Part.