Power of arrest
47.—(1)  The Director-General, a police officer or an authorised officer may arrest without warrant any person committing in his or her view, or who he or she has reason to believe has committed, any offence under this Act if —
(a)he or she does not know the person’s name and address;
(b)the person omits or refuses to give his or her name and address or provide any other proof of identity that may be required; or
(c)he or she has reason to believe that the name, address or proof of identity given by the person is false.
(2)  A person arrested under this section may be detained until his or her name and address are correctly ascertained.
(3)  A person arrested under this section must not be detained longer than is necessary for bringing him or her before a court unless the order of a court for his or her detention is obtained.