After news broke that a group of Milwaukee police officers savagely beat an unarmed black man named Frank Jude in 2004, the city saw crime-related 911 calls drop by about 20 percent for more than a year—totaling about 22,200 lost reports of crimes—according to a new study by a group of sociologists at Harvard, Yale, and Oxford universities.
The outcome wasn’t unique to Jude’s beating, the researchers found. Looking at the city’s 911 call records from 2004 to 2010, they noted similar drops after other highly publicized local and national cases of police violence against unarmed black men.
The findings square with earlier research showing that communities—specifically black communities given recent events—become more cynical of law enforcement after brutality cases. But the new study, published in the October issue of the American Sociological Review, is the first to show that people actually change their behavior based on that elevated distrust. Namely, community members become less likely to report crimes to law enforcement, likely out of fear of interacting with police or skepticism that police will take them seriously and help.
This, in turn, may contribute to crime spikes. In the six months after local media first reported Jude’s beating in February of 2005, homicides surged by 32 percent over the previous six months. The researchers noted it was the city’s deadliest period across the seven years they studied.
“Police departments and city politicians often frame a publicized case of police violence against an unarmed black man as an ‘isolated incident,’” the authors noted. However, “the findings of this study promote a more sociological view of the issue by suggesting that no act of police violence is an isolated incident, in both cause and consequence.”
The drop in 911 calls also cast doubt on another common theory: that crime levels rise following such brutality cases because communities lash out and police become afraid to use force. But reluctance to use force is irrelevant if police aren’t responding to crimes. Instead, it’s the fears of the community members that seem to make a difference, the researchers suggest.

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