Neighbours in Watnall are being asked to be on their guard after a man entered a home while the elderly occupants were in.
At about 3pm on Monday April 15 the man walked in the house in Long Lane claiming to have heard screams and stating that he had come to check up on the couple living there.
Beat manager Pc Paul Toon said: “Did you see or hear anything suspicious in that area? Do you have CCTV on your premises?”
He added: “if you have elderly residents as neighbours please be vigilant and report any suspicious incidents to the police immediately.”
Call police on 101 with information.