Severity of the crime at issue?: riot, property destruction, trespass. I don't know if those actions are felonies in D.C.
Was the suspect resisting or attempting to flee?: I would say she was actively attempting to gain entrance with malicious intentions
Was the suspect an immediate threat to officers or other citizens?: I think anyone with a brain could articulate the ramifications if that barrier was breached. They weren't smashing through it to shake hands.
