Canterbury police say illegal street racing turning violent or resulting in death was the reason for their crack down at the weekend. Officers in the region gave out almost 450 driving infringement notices, made ten arrests, caught five drunk drivers and impounded 28 vehicles across three nights. It was part of a wider police operation which also targeted anti-social road users in Bay of Plenty, Wellington and Manawatu. Christchurch Metro Commander Superintendent Lane Todd spoke to our reporter Niva Chittock.