(1) The person carrying out a search may, in a manner and for a duration that is reasonable for the purposes of carrying out the search,—
(a) secure the place, vehicle, or other thing searched, any area within in or on that place, vehicle, or other thing, or any thing found within in or on that place, vehicle, or other thing:
(b) exclude any person from the place, vehicle, or other thing searched, or from any area within the place, vehicle, or other thing, or give any other reasonable direction to such a person, if the person carrying out the search has reasonable grounds to believe that the person will obstruct or hinder the exercise of any power under this subsection.
(2) A person who exercises any power under subsection (1) must, on the request of any person affected by the exercise of the power,—