The expression “public department” shall include the Treasury, the F1Ministry of Defence,. . . . F2, the Board of Inland Revenue, the F3Commissioners of Customs and Excise, the F4Crown Estate Commissioners, the Commissioners of Works, the Committee of Her Majesty’s Privy Council appointed for the consideration of matters relating to Trade and Foreign Plantations, and all the like public departments, bodies, or boards, and all and every officer and officers, person and persons acting on the behalf or in the interest of or entitled at the date of the passing of this Act to sue on the behalf or in the interest of any such public department.

But the expression “public department” does not include F7Crown Estate Scotland.