A code of conduct for gold shops in Bradford – introduced after a series of violent robberies in the city – has helped to reduce offences.

Police began Operation Scaldlock in January following six jewellery raids in 12 days, described by detectives as “horrific”.

Senior officers set up the Gold Standard for traders of precious metals to voluntarily sign up to.

The scheme was aimed at tightening up security measures at pawnbrokers, gold traders and jewellers’ shops to restrict the opportunity for robbers and burglars to sell on stolen goods.

Almost six months into the operation, police are celebrating its success, which has included a total of ten arrests and the charging of three men with a series of robberies.

Detective Chief Inspector Steve Thomas, who is in charge of Operation Scaldlock, said yesterday that a series of crime prevention days had been held across the city at which alarms were installed and advice given about safes.

Det Chief Insp Thomas said: “The Gold Standard has been implemented across the district and is currently being monitored to ensure retailers comply.

“It has succeeded in reducing these offences, particularly those involving home invasion, and a reduction in burglaries.”

He added: “This is part of the district’s crime prevention plan for the coming year.

“It is best described as work in progress, but we are pleased to be reducing offences such as this.”

The Gold Standard aims to reward and support reputable traders, while helping police to identify anyone who might be trading in stolen gold.

Those signing up have to demonstrate that they took the details of each person who sold precious metals to them.

One of the shops involved in the scheme is Cash For Gold in James Street, Bradford, which is owned by TV antiques dealer Tim Hogarth.

The shop displays photographs and descriptions of items known to be stolen across the back of the counter. Staff turn away anyone trying to sell them and contact police.