Check this out on YouTube.
Also, listen to this interview with Amy Goodman, which details the arrests, as well, and which reveals that police have been arresting citizens without cause. Goodman also details the raids that took place before the Convention began.
During this show, Democracy Now! producer Sharif Abdel Kouddous tells host Thom Hartmann that he witnessed a New York Post photographer who had been arrested and was cuffed screaming at the police, "for Christ's sakes, I work for a Republican newspaper!"
Welcome to the military state.