http://www.legislation.gov.uk/ukpga/Vict/20-21/44/section/3Crown Suits (Scotland) Act 1857An Act to regulate the Institution of Suits at the Instance of the Crown and the Public Departments in the Courts of Scotland.1978-06-01texttext/xmlenStatute Law Database2020-06-01Expert Participation2020-04-01 3Provided 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.Words in s. 3 substituted (20.5.1999) by 1998 c. 46, s. 125, Sch. 8 para. 2(4); S.I. 1999/3178, art. 2(2), Sch. 4