Facebook pages run by local law enforcement agencies significantly overrepresented Black suspects, and those practices reinforce racial stereotypes about crime, a new study suggests.

Why it matters: The social media platform with more than a billion users makes it easy to reshare police posts that critics say can distort people's understanding of local crime.

Details: A study published last week in the journal Proceedings of the National Academy of Sciences analyzed nine years of posts on the Facebook pages of nearly 14,000 local police departments.

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