In Italy, the polizia provinciale are the provincial-level police forces. Each Italian province can by statute have its own police force. Polizia provinciale are small police organisations whose main duties are to enforce regional and national hunting and fishing laws but have also expanded into environmental protection. They provide traffic police service and participate in the security services arranged by the authorities. The forces' vehicles are usually white with a green or blue stripe along the side. Polizia provinciale must be distinguished from questura, the office of the head of the state's police (polizia di stato) in a province,[clarification needed] called questore (quaestor).