Policja is the generic name for the police in Poland. The Polish police force was known as policja throughout the Second Polish Republic (1918–1939), and in modern post-communist Republic of Poland since 1990. Its current size is 100.000 officers and ca. 25.000 civilian employees. Among the branches in the force are: Criminal Service, Traffic Police Service, Prevention Service and Supporting Service. Most towns and some villages have their own city guards, which supervise public order and road safety; however city guards have jurisdiction only over misdemeanors and in cases of crimes may serve only in a supportive role for the state police.