The Spokane County Sheriff's Office has created a cold case unit of two detectives to focus on unsolved cases.

The detectives may be pulled off of the cold case unit to work on a major crime, but the goal is to make progress on 45 open cases, the oldest dating back to 1948.

Sheriff Ozzie Knezovich told The Spokesman-Review the cold case unit may be expanded by building a volunteer team of retired officers.