Power of Minister to make orders
30.  Whenever the Minister is satisfied with respect to any person, whether the person is at large or in custody, that the person has been associated with activities of a criminal nature, the Minister may with the consent of the Public Prosecutor —
(a)if he is satisfied that it is necessary that the person be detained in the interests of public safety, peace and good order, by order under his hand direct that the person be detained for any period not exceeding one year from the date of the order; or
(b)if he is satisfied that it is necessary that the person be subject to the supervision of the police, by order direct that the person be subject to the supervision of the police for any period not exceeding 3 years from the date of the order.