During the 1989 murder investigation of Laura Palmer, the sheriff was Harry S. Truman who took the position from his brother, Frank Truman, who retired in 1981 and eventually returned some years later to serve in his brother's stead. Their father, Frederick Truman had previously been the sheriff since the 1940s.
The department works in close proximity with the Bookhouse Boys.
- Andy Brennan
- Bobby Briggs
- Chad Broxford
- Dale Cooper (March 18, 1989 – March 23, 1989)
- Jesse Holcomb
- Fred (by 1989)
- Twin Peaks Collectible CardArt
- Twin Peaks: The Missing Pieces
- Twin Peaks – season 1
- Twin Peaks – season 2
- Twin Peaks – 2017