Functions which are no longer to be exercisable in Scotland 10 4 British Transport Police Authority functions The functions of the British Transport Police Authority which are conferred by Part 3 of the Railways and Transport Safety Act 2003 are no longer exercisable in or as regards Scotland. 5 British Transport Police Force functions 15 The functions of constables of the British Transport Police Force (including those of the Chief Constable, deputy Chief Constable and assistant Chief Constables) which are conferred by Part 3 of the Railways and Transport Safety Act 2003 are no longer exercisable in or as regards Scotland. 20 Transitional provision 5A Limitation on redeployment of constables (1) Subsection (2) applies to a constable of the Police Service of Scotland who— (a) immediately before the transfer date...