[holding answer 4 November 2008]: The information requested is not held centrally and could be obtained only at disproportionate cost.
However, as the hon. Member will be aware, the Department is currently conducting a review of street trading and pedlary and has commissioned some research from Durham university. The researchers have made a rough estimate that between 3,000 and 4,500 certificates are issued each year in Great Britain. This estimate is extrapolated from a limited number of police command units that participated in the research. Therefore the numbers should be treated as best estimates only.