More than 20 arrests have so far been made as a result of mobile CCTV cameras being used in North Somerset, say police.
The system went live towards the end of September 2002 in a bid to help combat drug dealing on the region's streets.
The scheme was put together by the North Somerset Drug Action Team, which received £30,000 for the project from the national Communities Against Drugs fund.
Two CCTV cameras are used and can be moved around the area at short notice to areas where suspected street dealing is taking place.
Detective Inspector Martyn Triggol, of Weston-super-Mare police, said: "When we get reports of dealing on a street which is not covered by any of the existing CCTV schemes, we can quickly set up one of these cameras.
"The feedback from officers has been positive and these cameras have proved to be excellent pieces of equipment which have been used to great effect."