Crown Proceedings Act 1947

29 Exclusion of proceedings in rem against the Crown.

(1) Nothing in this Act shall authorise proceedings in rem in respect of any claim against the Crown, or the arrest, detention or sale of any of His Majesty's ships or aircraft, or of any cargo or other property belonging to the Crown, or give to any person any lien on any such ship, aircraft, cargo or other property.

(2) Where proceedings in rem have been instituted in the High Court or in a county court against any such ship, aircraft, cargo or other property, the court may, if satisfied, either on an application by the plaintiff for an order under this subsection or an application by the Crown to set aside the proceedings, that the proceedings were so instituted by the plaintiff in the reasonable belief that the ship, aircraft, cargo or other property did not belong to the Crown, order that the proceedings shall be treated as if they were in personam duly instituted against the Crown in accordance with the provisions of this Act, or duly instituted against any other person whom the court regards as the proper person to be sued in the circumstances, and that the proceedings shall continue accordingly.

Any such order may be made upon such terms, if any, as the court thinks just; and where the court makes any such order it may make such consequential orders as the court thinks expedient.