Black children and kids with disabilities were disproportionately impacted, according to CBS News analysis of Education Department data.

“Don’t make a wrong move,” the officer said as he pinned the struggling subject to the ground. “Period.”

The officer tightened the handcuffs around the subject’s thin wrists.

“Ow, ow, ow, it really hurts,” the subject exclaimed.

The officer pressed his weight into the subject’s small body while school staff watched it all unfold. The person he was restraining was 7 years old.