
1 
Every action, suit, or proceeding to be instituted in Scotland on the behalf of or against Her Majesty, or in the interest of the Crown (including the Scottish Administration), or on the behalf of or against any public department, may be lawfully raised in the name and at the instance of or directed against the appropriate Law Officer as acting under this Act.
2 
Provided always, that before instituting or defending any such action, suit, or proceeding, the appropriate Law Officer shall have the authority of Her Majesty of the part of the Scottish Administration or of the public department respectively on whose behalf or against whom such action, suit, or proceeding shall be instituted, to the institution or defence thereof.
3 
Provided also, that it shall not be competent to any private party in any action, suit, or proceeding instituted as aforesaid, to challenge or impugn the instance of or the title to defeud such action, suit, or proceeding, or the right or title of the appropriate Law Officer to raise and prosecute or to defend the same, upon any allegation that such authority (as aforesaid) has not been granted, or that evidence of such authority is not produced.
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(1) The expression “public department” shall include the Treasury, the Ministry of Defence,. . . . , the Board of Inland Revenue, the Commissioners of Customs and Excise, the Crown 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.
(2) But the expression “public department” does not include  Crown Estate Scotland.
4A 
In this Act “the appropriate Law Officer” means—
(a) the Lord Advocate, where the action, suit or proceeding is on behalf of or against any part of the Scottish Administration, and
(b) the Advocate General for Scotland, in any other case.
5 
. . . No action, suit, or proceeding raised or to be raised at the instance of or against the Lord Advocate or the Advocate General for Scotland for the time being shall abate or be affected by any change in the person, holding that office.
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