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Nothing in section 31 or any provisions made for the purpose of, or in connection with, conferring jurisdiction on the county court in relation to Admiralty proceedings authorises proceedings in rem in respect of any claim against the Crown, or the arrest, detention or sale of any of Her Majesty's ships or Her Majesty's aircraft, or of any cargo or other property belonging to the Crown.
In subsection (2) "Her Majesty's ships" and "Her Majesty's aircraft" have the meanings given by section 38(2) of the Crown Proceedings Act 1947.