(1)An enforcement authority may—
(a)make, or authorise any of their officers to make on their behalf, such purchases of goods; and
(b)authorise any of their officers to procure the provision of such services or facilities or to enter into such agreements or other transactions,
as may appear to them expedient for determining whether any provisions made by or under this Act are being complied with.
(2)Any act done by an officer authorised to do it under subsection (1) shall be treated for the purposes of this Act as done by him as an individual on his own behalf.
(3)Any goods seized by an officer under this Act may be tested, and in the event of such a test he shall inform the person mentioned in section 162(2) of the test results.
(4)Where any test leads to proceedings under this Act, the enforcement authority shall—
(a)if the goods were purchased, inform the person they were purchased from of the test results, and
(b)allow any person against whom the proceedings are taken to have the goods tested on his behalf if it is reasonably practicable to do so.