The treatment of images with purposes of videovigilància in the tram, once the real-time emission of images has been included in the monitors, is subjected to the regulations of protection of particulars and to the Instruction 1/2009. The visualization of images of persons who travel in the tram in the foreseen terms to the consultation is not proportionate or adjusted to the demands of the principles of quality and of purpose, unless the persons were not identifiable, circumstance that does not consider itself proved. The purpose of transmitting the passengers the sensation of control and of security, and of producing a discouraging effect, can be achieved with the fulfillment of the duty of information (article 5 LOPD and article 12 Instruction 1/2009), in particular, with the information facilitated by the inspectors themselves or with the implementation of other additional means.