The law says
IRPA s. 57(1)Within 48 hours after a permanent resident or a foreign national is taken into detention, or without delay afterward, the Immigration Division must review the reasons for the continued detention.
Further review
(2)At least once during the seven days following the review under subsection (1), and at least once during each 30-day period following each previous review, the Immigration Division must review the reasons for the continued detention.
Presence
(3)In a review under subsection (1) or (2), an officer shall bring the permanent resident or the foreign national before the Immigration Division or to a place specified by it.
Justice Laws is the authoritative version. If this copy and it ever differ, Justice Laws wins.