5. For section 12 there shall be substituted the following section:—
“12. Where a fine is imposed by a court of summary jurisdiction in the Isle of Man on the master, owner or charterer or a member of the crew of a fishing boat who is convicted by the court of an offence under section 5, 6 or 10 of this Act, the court may—
(a)order that payment of the fine shall be enforced by the coroner against the boat and its gear and catch and any property of the person convicted in the same way as if the order imposing the fine had been an execution granted against such person by a Judge of the Common Law Division of the High Court of Justice of the Isle of Man, and such order shall have the same force and effect as such execution has; and
(b)if the boat is a foreign fishing boat, order it to be detained for a period not exceeding three months from the date of the conviction or until the fine is paid or the amount of the fine is levied in pursuance of any order under paragraph (a) above, whichever occurs first.”.