A bag was taken from an unlocked car and police are looking for witnesses.
Between 10am and 11am on Wednesday, July 9, a bag was taken from a white Hyundai car, parked on Bradfield Avenue, in Buckingham.
The property in the bag included a mobile phone, wallet, cash and cards.
Thames Valley Police are urging people to be vigilant with their security and make sure their vehicle are locked when unattended and all property is removed.
Other advice includes not ‘hiding’ property in the car as thieves know all the right places to look.
Anyone who might have seen or heard anything suspicious in the area should contact Police Community Support Officer (PCSO) Unita Hopkins, from Buckingham on 101 or call Crimestoppers anonymously on 0800 555 111, or report it online.