The Safety Investigation Authority of Finland (****SIAF or SIA,, lit. Accident Investigation Center, shortened to OTKES; ) is the accident investigation authority of Finland. It investigates all major accidents, and all aviation, maritime, and rail accidents and incidents. SIAF is located within the Ministry of Justice, and is headquartered in Helsinki, Finland. The SIAF was previously known in English as the Accident Investigation Board of Finland.

Organization

The SIAF consists of five investigation branches: aviation, maritime, rail, other accidents, and exceptional events. The SIA has appointed a chief investigator to each.