Van drivers are being warned to secure their vehicles after a recent spate of tool thefts in Windsor and Maidenhead.
In August there were 26 reports of tools being stolen from vans across the borough - compared to 12 the previous month.
Detective Sergeant Dean Brown said: “I would urge motorists to be mindful that thieves will be on the lookout for vehicles which have not been left properly secured.
“It is important for motorists to lock their vehicles and double-check that they have done so.
“There are also some other simple steps you can take to make yourself less likely to be a victim, including simply not storing tools in vehicles overnight.
“It is also advisable to display notices that inform potential thieves that no tools are kept within.”
Police gave out the following advice:
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