55. (1) An officer may issue a warrant for the arrest and detention of a permanent resident or a foreign national who the officer has reasonable grounds to believe is inadmissible and is a danger to the public or is unlikely to appear for examination, an admissibility hearing or removal from Canada.

(2) An officer may, without a warrant, arrest and detain a foreign national, other than a protected person,

(a) who the officer has reasonable grounds to believe is inadmissible and is a danger to the public or is unlikely to appear for examination, an admissibility hearing, removal from Canada, or at a proceeding that could lead to the making of a removal order by the Minister under subsection 44(2); or

(b) if the officer is not satisfied of the identity of the foreign national in the course of any procedure under this Act.

(3) A permanent resident or a foreign national may, on entry into Canada, be detained if an officer

(a) considers it necessary to do so in order for the examination to be completed; or

(b) has reasonable grounds to suspect that the permanent resident or the foreign national is inadmissible on grounds of security or for violating human or international rights.

(4) If a permanent resident or a foreign national is taken into detention, an officer shall without delay give notice to the Immigration Division.