The Cleveland Police Museum traces its origins to a growing desire in the early 1980s to preserve the history of law enforcement in one of Ohio's most influential cities. In 1983, a group of Cleveland police officers and local citizens came together to form the Cleveland Police Historical Society, establishing a nonprofit organization dedicated to collecting and safeguarding the department's past.

Inspired in part by historic collections such as London's Black Museum, the founders envisioned a space where the public could explore the evolution of policing in Cleveland. Within months of its creation, the museum opened its doors inside the Cleveland Justice Center, immediately drawing interest from visitors curious about crime history and police work.

The museum documents the Cleveland Division of Police from its formal founding in 1866 through modern times. Early exhibits highlighted the transformation from simple night watch systems into a structured police force, showcasing innovations like call boxes, mounted units, and early patrol vehicles that shaped policing in the city.

Over the years, the collection expanded to include artifacts, photographs, and case files related to some of Cleveland's most infamous events. The displays explore notable figures such as Eliot Ness, as well as chilling cases like the Torso Murders, offering visitors a deeper understanding of the city law enforcement challenges and triumphs.

Today, the museum continues to operate as a preservation and educational institution, staffed largely by volunteers and supported by the community. Its mission remains focused on honoring the service of officers, preserving historical materials, and helping the public better understand the role of policing in Cleveland history.