(1) A person who installs a photographic detection device at any location must, as soon as practicable after completing the installation, test the device to ensure that it is operating correctly.(2) A person who operates a photographic detection device at any location must, as soon as practicable after the device becomes operational and whenever a new film or disk is inserted in the device at that location, test the device to ensure that it is operating correctly.(3) A photographic detection device is taken to be operating correctly for the purposes of this regulation if it is capable of being operated in accordance with (a) regulation 4(2) for red light offences; or(b) regulation 4(3) for speeding offences; or(c) if a photograph taken by the device is to be used as evidence of the driving or use of a vehicle on a public street or other road at a particular time, regulation 4(2) or (3) .(4) A photograph taken by a photographic detection device is not admissible as evidence in any proceedings if it appears, on testing the device under this regulation or on developing film or an image from the device, that it was not operating correctly when the photograph was taken.