The issue focused on the use of force by police, but it also included issues of privacy and accountability, the report found.

The study found police were not always following the law when dealing with people of color. In some of those cases, they used excessive force, including shooting people, beating them, and throwing them out a car.

The study did not address police shootings of civilians.

"The report's findings are of grave concern given our nation's record of violence against law enforcement officers