The following subsections shall be substituted for subsections (9) and (10) of section 57 of the County Courts Act 1959 (which provides for the mode of exercise of the Admiralty jurisdiction of a county court)—
“(9)A county court may issue a warrant for the arrest and detention of any vessel, aircraft or property to which an action in rem brought in the court relates unless or until bail to the amount of the claim made in the action and the reasonable costs of the plaintiff in the action be entered into and perfected by or on behalf of the defendant.
(10)Except as provided by subsection (9) of this section, no vessel, aircraft or property shall be arrested or detained in Admiralty proceedings in a county court otherwise than in execution.”.