We're appealing for information after an incident in Ford, Chippenham yesterday (2/4).
Shortly before 3 pm a man was disturbed by the property owner attempting to steal items from a vehicle.
The man threatened the male victim with a knife before getting into a silver vehicle and driving off on the A420 in the direction of Marshfield.
The suspect is described as 5'10" of stocky build, dark hair. Wearing a black jacket, grey trousers and gloves.
PC Howard Roger said: "The victim was very shaken by the actions of this man, it was obviously an frightening experience. We need to identify and locate the suspect and would like to hear from anyone who can help. "
Anyone with information is asked to contact PC Roger on 101 quoting reference 54190032122. Or call Crimestoppers 0800 555 111 anonymously.