• Investigation of aviation accidents since the early 1970s
• A planning commission for the investigation of major accidents since 1986
• The Safety Investigation Authority since 1996 (major accidents and serious incidents, as well as aviation and rail traffic accidents)
• Investigation of maritime accidents and incidents since 1997
• In accordance with the Safety Investigation Act (525/2011) that entered into force in June 2011, investigation commissions are no longer established. Instead, an investigative board consisting of the leader of the investigation board and typically 1–3 experts is appointed to investigate accidents. In addition, the investigative board can avail themselves of assistance from special experts with the investigation. The Chief Investigator of the investigative branch in question leads the safety investigation.