Police operation on London bridges and at stations to tackle cross-London crime

Police operation on London bridges and at stations to tackle cross-London crime; ENGLAND: London Vauxhall: EXT AT NIGHT Police officer stopping car on Vauxhall bridge Car stopping (numberplate and faces of occupants obscured) People from car being questioned (faces obscured) Inspector Matthew Butterworth (Metropolitan Police) interview SOT Car pulling over to side of the road after being stopped by police officer Another car pulling over Police officer indicating that car should stop Butterworth interview SOT Vauxhall Cross London Underground Station: INT People seen passing through ticket barriers at London Underground station and police officers with sniffer dog seen reflected in mirror Man passing through portable metal detector - or knife arch - and search station installed at station by the police Police officers manning security station Reporter to camera SOT Vauxhall: EXT AT NIGHT Detective Superintendent Eric Phelps (Metropolitan Police) interview SOT Entrance to station Vauxhall Cross London Underground Station: INT Police sniffer dog working at station