The raid took place between 5.15-5.35pm at a house in Aradon Close, with thieves smashing a glass door at the back of the property before stealing cash from a bedroom located upstairs. Detective Constable James Howard, of Cambridgeshire police, said: The home owner left to visit family at 5.15 pm. When she returned a 5.35 pm the back door glass was found smashed and cash stolen from an upstairs bedroom.DC Howard said £20 was stolen.We are keen to speak with anyone who may have seen a suspicious looking silver BMW with a roof fin in the Buckden area around these times. Anyone with information regarding the burglary can contact police on 101 or e-mail email@example.com Alternatively, you can contact Crimestoppers, anonymously, on 0800 555 111. DC Howard added: Just a reminder to check your home security and to make sure doors, windows and rear gateways are locked when you are away from the property.