About Slovenian Police The Slovenian National Police Force is the national government agency that handles the responsibility of law enforcement of the Republic of Slovenia.It is composed of the eight police directorates in Celje, Koper, Kranj, Ljubljana, Maribor, Murska Sobota, Nova Gorica, and Novo Mesto. Law enforcement in Slovenia is governed by the Slovenian Ministry of Internal Affairs. The Slovenian police force was admitted to Organization for Security and Co-operation in Europe on March 24, 1992. Find out more at www.policija.si