Police said the cameras helped provide a better police response
A Lincolnshire town is to get its 70th CCTV camera after police said footage had been instrumental in more than 700 arrests in a year.
The borough council's CCTV team described Boston's cameras as "70 extra policemen".
The state-of-the-art system, complete with night vision and rain lens wipers, was set up after shoppers and traders said crime was a major concern.
Police said the cameras acted as a deterrent and helped gain convictions.
The cameras have lead to arrests 709 arrests in the 12 months to November, Lincolnshire Police said.
Officers said they had led to arrests in cases of weapons and drugs possession, burglary, theft, public disorder and criminal damage.
They also include automatic number plate recognition to catch wanted vehicles.
Boston Borough Council provides 24-hour-a-day monitoring of the cameras.
Former policeman Gilly Gilbert, who leads the CCTV team, said: "We've got 70 extra policemen on the street with 30-day total recall."
He said the cameras saved court time as many offenders plead guilty when faced with footage.
Insp Phil Clark said: "The town is now comprehensively covered by CCTV cameras, which undoubtedly assist us in providing a more effective police response to crime and disorder.
"This is enhanced by Boston Borough Council's CCTV operators who communicate direct with police officers on the ground."