At about 5.18am on Monday 27th October 2014 a man forced entry to the Co-operative store in Park Parade through its roof.
The man disturbed staff at the store and filled a bag with cigarettes from its kiosk.
The man, who appeared to have a crow bar, left through a side door and entered an enclosed garden. While in the garden he made a threat against a member of staff before climbing over a fence and walking away up The Link at about 5.25am.
No one was hurt during the incident however a large amount of cigarettes were stolen.
The offender is described as white, approximately 5ft 8ins to 6ft, has a brown beard and is of medium build. He is believed to have worn black trousers, white trainers, a light-coloured anorak with a hood and a balaclava with gloves.
Police officers are investigating the circumstances of the offence.
Thames Valley Police are appealing for anyone who may have any information that could help with their enquiries to please call the 24-hour Thames Valley Police enquiry centre on 101.
If you don’t 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.