Alongside the Black Lives Matter movement in the past several years, civil rights advocates have begun pointing out that the way municipalities collect fees and fines often disproportionately affects low-income communities of color, especially when those communities aren’t well represented in local governments. In 2015, as a follow-up to investigations of police bias in Ferguson, Mo., the Civil Rights Division of the Justice Department released the Ferguson report, which painstakingly documents how the police department in that city relied overwhelmingly on fees and fines collected from people in ways that “both reflect and exacerbate existing racial bias.”
But here’s another result of fee and fine enforcement that has never before been measured: Police departments that collect more in fees and fines are less effective at solving crimes.