Law enforcement in Portugal is the responsibility of three bodies: * Guarda Nacional Republicana - National Republican Guard. A Gendarmerie who mainly work in rural areas too small to warrant the PSP, and provide a national highway patrol and fiscal guard. * Polícia de Segurança Pública - Public Security Police. Civilian police force who work in larger urban areas. * Polícia Judiciária - Judicial Police. Overseen by the Public Ministry, they investigate criminal cases.