January 1866: Author Mark Twain blasts the SFPD and Chief Martin Burke for corruption in a series of letters to the editor, including one to the Virginia City Territorial Enterprise, now lost but parts of which were reprinted elsewhere, published January 23, 1866
From 1875 to 1888: Hunt for Charles Bolles aka Black Bart, a notorious stagecoach robber at the time. He was eventually caught by a Wells Fargo detective James B. Hume. He disappeared shortly after he was released from prison in 1888.
1877: The "July Days" rioting of 1877 that broke out as an indirect result of an earlier demonstration in solidarity with striking miners in Pittsburgh, Pennsylvania, where at least forty strikers had been killed by state militia. City fathers established a committee of safety to supplement the police force, handing out axe handles that gave the group the moniker, the "pick-handle" brigade.