Thames Valley Police has released CCTV images of a man that officers would like to speak to following a robbery in Newport Pagnell.
At around 7.30pm on 1 November, a man entered a Co-op store in Wordsworth Avenue and took a number of bottles of alcohol and confectionary.
When he was confronted and blocked from the exit by staff members, he threatened them with a knife.
The offender then left the store and got into a small hatchback car parked near to the Dove Public House.
The man in the CCTV image may have vital information about this investigation.
Investigating officer Detective Constable Greg Hughes of Milton Keynes Force CID, said: “This was a very distressing incident for the members of staff who were threatened with a knife during this robbery.
“We would like to speak to the man pictured in this CCTV image, as we think he may have vital information to help with this investigation.
“If you know who the person pictured is, or this is you, please get in touch with police quoting the reference ‘43180334271’”.
If you have any information about the incident please report this via the 24-hour Thames Valley Police enquiry centre on 101 quoting the reference 43180334271 or make a report online.
If you do not want to speak to police please call the independent charity Crimestoppers on 0800 555 111.