(1)  A police officer may at any time stop or detain a person if there are reasonable grounds for suspecting that the person is committing, or has committed, an offence under this Act.

(2)  When exercising his or her powers under this section, a police officer may use any reasonable force and any assistance the police officer thinks reasonable.

(3)  In this section, a power to stop or detain includes the power to stop and detain.