147Power to direct vessel or marine installation to port
(1)Where a marine enforcement officer—
(a)considers that it would not be reasonably practicable to exercise a power which the officer wishes to exercise in relation to a vessel or marine installation without detaining it in a port, or
(b)reasonably believes that—
(i)a vessel or marine installation is itself evidence of the commission of a relevant offence, and
(ii)the only reasonably practicable way to preserve the evidence is to detain the vessel or marine installation in a port,
the officer may do any of the things in subsection (2).
(2)The things are—
(a)take, or arrange for another person to take, the vessel or marine installation and its crew to the port which appears to the officer to be the nearest convenient port,
(b)require the person who is for the time being in charge of the vessel or marine installation to take it and its crew to that port.
(3)When the vessel or marine installation has been taken to a port, the officer may—
(a)detain it there,
(b)require the person for the time being in charge of it to do so.
(4)A marine enforcement officer who detains a vessel or marine installation under this section must serve a notice on the person who is for the time being in charge of it.
(5)The notice must state that the vessel or marine installation is to be detained until the notice is withdrawn.
(6)A notice served under subsection (4) may be withdrawn by service of a further notice signed by any marine enforcement officer.