Investigations and special prosecutions; calling on other departments and officers for assistance; employing special investigators. In making investigations of and conducting special prosecutions for violations or alleged violations of the criminal laws of the state, the Attorney General may call upon the Department of State Police or any other peace officer or department for assistance in making such investigations or, in the discretion of the Attorney General, may employ special investigators for such purpose

ORS 180.090 — under Chapter 180.