Brown’s shooting death at the hands of Officer Darren Wilson has thrust Ferguson into the center of a nationwide debate over police tactics and race relations. The Justice Department is expected to announce it won’t charge Wilson for the shooting, but it’s also expected to outline findings that allege a pattern of discriminatory tactics used by the Ferguson police.

If they don’t agree to review and revise those tactics, sources say, the Justice Department would sue to force changes in the department.

Asked to comment, Ferguson police Chief Thomas Jackson told CNN’s Sara Sidner, “I have received nothing new.

“Everything they suggested in the past has been reasonable and we have tried to comply.”