 Part V of the Act provides that whenever the Minister for Home Affairs is satisfied that a person, whether at large or in custody, has been associated with activities of a criminal nature, the Minister may, with the consent of the Public Prosecutor, order that the person be detained for any period not exceeding 12 months if he is satisfied that the detention is necessary in the interests of public safety, peace and good order; or order that the person be subject to police supervision for any period not exceeding three years if he is satisfied that this is necessary.Within 28 days of a detention order being made, the Minister must refer the order and a statement of the grounds upon which the order was made to an advisory committee.The advisory committee must submit a written report on the making of the order, with recommendations as it thinks fit, to the President of Singapore, who may cancel or confirm the order.