See here: https://news.ycombinator.com/item?id=43176625 https://news.ycombinator.com/item?id=43176625 FOIA requester responded in comments saying they received

See here: https://news.ycombinator.com/item?id=43176625 https://news.ycombinator.com/item?id=43176625 FOIA requester responded in comments saying they received a tip indicating illegal practices, and noted in his article that he had previously uncovered evidence of over-policing in black neighborhoods.