London G20: Confrontation in the City
In the first clip you can see that the police are failing in their attempt to separate the crowds and pen them in. "Get back! Get back!" a cop screams hysterically. "We're going, we're going," replies a bemused demonstrater. For a moment the police fail to break-up the crowd and are instead sent packing.
Later the situation changes and with the introduction of riot police the police begin to push the crowds back aggressively. Even the Al Jazeera reporter is heard to protest about police aggression.