The Norwegian National Authority for Investigation and Prosecution of Economic and Environmental Crime (ØKOKRIM) is the central unit for investigation and prosecution of economic and environmental crime, and the main source of specialist skills for the police and the prosecuting authorities in their combat against crime of this kind. ØKOKRIM was established in 1989, and is both a police specialist agency and a public prosecutors’ office with national authority. The formal rules about ØKOKRIM can be found in chapter 35 of the Prosecution Instructions.