28Use of force

28 Use of force (1) Subject to this section, it is lawful for a police officer exercising a power under this Act in relation to a person, premises, vehicle or thing, and for a person assisting a police officer in the exercise of such a power, to use the force that is reasonably necessary to exercise the power. Terrorism (Emergency Powers) Act 2003 81 (2) It is lawful for a police officer, and a person assisting a police officer, to use the force that is reasonably necessary to ensure that a person ceases to contravene or to fail to comply with a direction given under this Act. (3) It is lawful for a police officer, and a person assisting a police officer, to use the force that is reasonably necessary to ensure that: (a) a person leaves an area or place that the person is required to leave or not to enter under section 22 or 30; or (b) a person ceases to tamper with, or to remove, a tape or other barrier in contravention of section 22 or 30. (4) In exercising a power under this Act a police officer, and a person assisting the officer in the exercise of the power, may only cause damage to a thing or premises if it is reasonably necessary to do so to enable the effective exercise of the power.