Denver's first African-American police officer, Isaac Brown, was elected in 1880, just 15 years after the Civil War ended. Back then, officers had to win the position and Brown's influence in the community was key to his selection. He's one of many African American police officers that served in Denver since the late 19th century and a new exhibit at Blair-Caldwell African American Research Library seeks to highlight their contributions.

Dean Christopherson is the president of the Denver Police Museum and he joined Colorado Matters with retired police officer C.C. Edwards, who served from 1977 to 2007.