Yellowstone County Sheriff Mike Linder is stepping down after 40 years with the Yellowstone County Sheriff’s Office, closing out a career that took him from volunteer reserve deputy to the county’s top law enforcement post — and through some of the region’s most challenging cold cases and criminal investigations.
From Volunteer to Sheriff
Linder started without a paycheck, joining the sheriff’s reserve program as an unpaid volunteer and contributing skills in scuba diving and search and rescue. He later left the family business to move into the department’s drug unit, where he worked undercover on drug purchases and busts before advancing through the ranks — from patrol deputy to sergeant to lieutenant.
Voters elected Linder sheriff in 2011, and he subsequently spent four years assigned to the U.S. Marshals Violent Offender Task Force, giving the office a direct connection to federal fugitive apprehension efforts.
“It was something you wanted to do just to give back to the community,” Linder said of his early volunteer work — a sentiment that, by most accounts, shaped the rest of his tenure.
Cold Cases Closed, New Programs Launched
Among the milestones of Linder’s tenure, the department succeeded in resolving two long-dormant murder cases. Investigators closed the 1998 killing of Miranda Fenner, who was murdered at a movie store in Laurel, using genealogy techniques and DNA technology — the same tools that have helped law enforcement agencies nationally crack decades-old cases. The department also resolved the 1973 murders of Linda and Clifford Bernhardt, who were killed in their Heights home.
On the programmatic side, Linder introduced initiatives aimed at reducing jail crowding by offering lower-level offenders pathways through breathalyzer compliance requirements and community service. The approach reflected a broader national conversation about using alternatives to incarceration for nonviolent offenders while preserving jail space for more serious threats — a debate that carries direct relevance for counties like Yellowstone that face ongoing detention facility pressures. A similar debate played out in Helena earlier this year, where the city commission voted to place a public safety levy before voters to fund facility needs.
Addressing drug trafficking has remained a persistent challenge for Montana sheriffs throughout Linder’s later years in office, as fentanyl and methamphetamine have driven up caseloads and complicated community supervision efforts statewide.
Retirement on His Own Terms
Linder emphasized that the departure is voluntary and comes from a position of strength. “My health is good. I’m leaving on my own terms, but it’s not like I don’t want to be helpful to the community if that should come,” he said.
That helpfulness will extend into the near term. Linder plans to assist with the public education effort surrounding a bond measure for the Yellowstone County Detention Facility, lending his credibility and institutional knowledge to a campaign that will require voter approval.
What Comes Next
With Linder’s exit, Yellowstone County — Montana’s most populous county and home to Billings — will transition to new leadership at the sheriff’s office. The department Linder leaves behind has a recent record of cold-case resolution and a set of diversion programs that will fall to his successor to maintain or expand.
The retirement also arrives as Montana counties navigate mounting public safety demands, from detention facility capacity to drug enforcement to search and rescue operations in a state that draws millions of visitors annually. Linder’s four-decade arc — starting as a volunteer with a dive tank and ending as an elected sheriff who closed murders dating back to the Nixon era — offers a measure of the institutional depth the office will need to replace.
