Officers are trying to trace a man who may be able to help with the investigation of an “incident” at a Northampton retail park.
The man, who is pictured, was first seen walking through the car park of the Riverside Retail Park sometime between 12.45pm and 1pm on Thursday, September 17.
He then entered the Currys PC World shop.
He is white, in his mid to late 40s, between 5ft 9in and 5ft 10in, with medium length brown hair.
At the time, he was wearing a green hoodie and blue jeans.
However the force has not revealed what the “incident” in question is.
The man, or anyone who knows who he is, can call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111 or use the anonymous online form at www.crimestoppers-uk.org.