Regulation 28

The medical officer shall inspect any ship and the persons on board as soon as possible after it has been taken or directed to a mooring station or after it has been detained under these regulations.

If the ship is one to which the authorised officer is required to apply any further measure under these regulations or additional measures in schedule 4, or if after such inspection he considers it necessary to apply any such further or additional measures he may detain the ship at the mooring station or at such other place as he considers desirable, or continue the detention, as the case may be, if such detention or continued detention is necessary for the application of such further or additional measures.