pepper spray
Police arrested three people at the protests on the Chapel Hill campus Thursday night.
St. Louis cops "exercised their discretion in an arbitrary and retaliatory fashion to punish protesters for voicing criticism of police," the judge ruled.
"The culture of law enforcement needs to change.”
"You let that badge go to your head," a bystander told an officer.
WHAT'S HAPPENING
The department calls a ruling to create stricter guidelines "heavy-handed intrusion."
But she hasn't heeded the calls for her to resign.
The incident, which happened during SXSW, is under investigation.
"When you look at the video, it looks bad," police Chief Darryl Forté told reporters.
It's happening all around the country.
He began having breathing problems after officers pepper sprayed him during a struggle, officials say.