(1) A police officer
must not, in the course of taking a person into custody or detaining a person
under a preventative detention order, use more force, or subject the person to
greater indignity, than is necessary and reasonable—
(a) to
take the person into custody; or
(b) to
prevent the escape of the person after being taken into custody.
(2)
Subsection (1) does not however prevent the lawful use of force in
self-defence or defence of another.