Where a person in custody in pursuance of a warrant issued by the Crown Court with a view to his appearance before the Crown Court is brought before a magistrates' court in pursuance of section 81(5) of the Senior Courts Act 1981—
the magistrates' court shall commit him in custody or release him on bail until he can be brought or appear before the Crown Court at the time and place appointed by the Crown Court;
if the warrant is endorsed for bail, but the person in custody is unable to satisfy the conditions endorsed, the magistrates' court may vary those conditions, if satisfied that it is proper to do so.
A magistrates' court shall have jurisdiction under subsection (1) whether or not the offence was committed, or the arrest was made, within the court's area.