I see that Keith Vaz has praised the policing of the Sri Lanka/Tamil Tiger protest in Westminster today. Presumably this is the same protest I read about where the policing has been so ineffective that protesters have smashed their way through police lines and are currently illegally blocking traffic in the London rush hour
http://news.bbc.co.uk/1/hi/uk/8008044.stm - about 50 seconds in.
We can expect to see more protests policed like this in the future. Soon the police will be too afraid to use force and just let the protesters through, even if they smash the crap out of all the shops and bring the city to a stand still.
I actually hope the police do nothing at the next major protest and let everyone see the absolute carnage without police presence.
I reckon they would have burnt down the RBS and caused a riot if the police didn't use those tactics at the G20.