(1)It shall be lawful for any constable appointed for any one of the border counties of England or Scotland respectively, that is to say the counties of Northumberland, Cumberland, Berwick, Roxburgh or Dumfries, to execute within any of those counties the lawful warrant of any sheriff, justice of the peace or other magistrate for the apprehension of any person accused or convicted of a criminal offence committed, or for the recovering of any goods alleged to have been stolen, within the county for which the constable is appointed, in like manner as the warrant might be executed by that constable within the last-mentioned county.
(2)In subsection (1) of this section—
(a)references to the counties of Northumberland and Cumberland shall be construed as including references respectively to a combined area within the meaning of the [1964 c. 48.] Police Act 1964 comprising Northumberland and to such a combined area comprising Cumberland, and
(b)references to the counties of Berwick, Roxburgh and Dumfries shall be construed as including references to a combined area within the meaning of this Act comprising any one of those counties.