A trusting elderly man in Brighton has been taken advantage of by a fraudster posing as a council official.
Police said the 79-year-old disabled resident answered the door at his home off Manor Road, on February 18.
The man at the door said he was a council official of some kind and engaged the resident in friendly, and supposedly helpful, chat for a while before leaving.
The man offered to do some shopping and the resident gave him a banknote towards this.
Some time after the man had left the resident discovered that £100 cash had been stolen from his property.
The man police want to talk to is described as white, slim and in his thirties or forties.
DC James Botting of Brighton CID said;
"This was a really nasty theft from a trusting resident and we need to find this man.
"If you think you recognise him, please contact us either online or by calling 101, quoting serial 297 of 20/02."