You're right to keep these types of stories in check, but TFTP and anyone else would be correct in condemming these cops, no matter how unruly these girls were. Under no circumstances except self defense does a person have a right to use violence against another. Governments could not exist without the violence or the threat of violence and the very existence of them is immoral as long as people are under physical threat against them or their property unless they pay up involuntarily.