(1) This section applies if a test of a traffic offence detection device under section 18 (Major testing of laser speed measuring devices—Act, s 24 (1)) or section 19 establishes—
(a) a matter mentioned in section 19 (4) or (7) in relation to the device; or
(b) the matters mentioned in section 18 (4) or section 19 (9) in relation to the device.
(2) The person who carried out the test must—
(a) sign a certificate to that effect; and
(b) if a seal on the device has been damaged or removed—seal the device.