Brilliant 2 euro commemorative coin of Portugal 2017 uncirculated , commemorating the 150th anniversarry of the establishment of "Polícia de Segurança Pública" (PSP). The Public Security Police (PSP) is a Portuguese security force charged with defending democratic legality, guaranteeing internal security and defending citizens' rights. In spite of having many other functions, the PSP is known to be the responsible security force of the great urban areas of Portugal, since the surveillance of the rural areas is normally reserved for the National Republican Guard. Because of its high visibility in the eyes of the public, PSP has become the Police par excellence of Portugal