'Direct action this weekend'
Updated on 23 March 2009
Protesters and police are gearing up for the first demonstrations ahead of next week's G20 summit meeting.
One of the key organisers of the protests against next week's G20 summit has told Channel 4 News that direct action will start this weekend, as activists try to make City firms join efforts to turn off their lights to mark "Earth Hour".
Direct action protester Chris Knight says any violence from police would be met by what he called "mutually assured destruction".
At the same time MPs have warned that heavy-handed tactics by the police are undermining the democratic right to protest, and have called for changes to the law.
G20 protests discussion on More4 News
John O'Connor, formerly head of the public order unit at the Metropolitan Police, and Lindsey German, from Stop the War, join Alex Thomson in the studio.
