At about 10.30pm on Friday 19the December 2014 a 43 year old man was in Bicester Road, Aylesbury when he was hit from behind by an unknown number of men.
The man then had cash, a mobile phone and luggage taken from him.
Thames Valley Police are appealing for anyone with information about this incident that would help with their enquiries to please contact the 24-hour enquiry line 101.
If you do not want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111. No personal details are taken, information is not traced or recorded and you will not go to court.