The information is not held in the form requested. Fixed cameras operated by the Hertfordshire Safety Camera Partnership under the national safety camera programme, which ended on 31 March 2007, reduced the number of personal injury collisions at camera sites by an average of 49 per cent. per year, comparing all the available after installation data with the three years before installation. This means around 162 fewer personal injury collisions each year. I have arranged for tables to be placed in the Libraries of the House regarding the performance of fixed speed cameras in Hertfordshire.