Kettling was later used at protests against the 31st G8 summit , held in 2005 . Kettling was used once again during the 2009 G-20 London summit protests outside the Bank of England , as part of the police Territorial Support Group 's " Operation Glencoe " . When police started to allow protesters to leave the kettle , they were photographed by Forward Intelligence Teams and told to give their names and addresses . Some refused to do so and were forced back into the kettle by police . A number of complaints over the tactic were subsequently made to the Independent Police Complaints Commission . Bob Broadhurst , the commanding officer during the protests , said that , " kettling was the best option " to counter the potential of widespread disruption by protesters "
31st G8 summit
31st G8 summit
Kettling