At 5.38am on Friday 4 October, the victim, a man in his sixties, was using a cash machine outside Lloyds Bank in Lloyds Court
He was then confronted by two offenders, one of whom demanded money from him and stated that he had a knife. The second offender did not say anything.
The victim was able to run away and did not sustain any injuries, and no knife was seen at any point.
One of the offenders, depicted in the E-fit, is described as a white man aged in his late twenties. He was around 6ft 1ins tall and of a slim build and was dressed in an anorak with a fur trimmed hood.
There is no description of the second offender.
Investigating officer, Detective Constable Jodie Parsons, of Milton Keynes police station, said: “I am releasing this E-fit image of a man in the hope that someone recognises him.
“I am also appealing for any witnesses who may have seen this incident taking place and have information about it that could help with my investigation.
“Anyone who recognises the man depicted, or has any information, is asked to call 101, quoting 43190306993.
