The Co-operative Group is trialling a CCTV system that delivers audio alerts to tell shoppers they are being monitored.

The technology from Vision Systems went into stores in Worthing, East Sussex, and Bath, in a three-month trial. The Society will evaluate the system, which remotely monitors stores and delivers audio alerts five times a day, before making the decision whether to roll it out across its entire estate.

Co-op regional loss prevention manager Richard Quinn said: “We hope the system will help us make real improvements to business.”