Police are warning people about doorstep traders selling fish for high prices after a complaint of assault in Long Sutton.
It happened in Daniels Crescent, off Little London, where it was alleged that an item was thrown at an occupant on at about 11.30am on Monday, March 15.
Police are investigating the matter and, in the meantime, advising people to buy goods from them.
The issue was raised at a meeting of Gedney Hill Parish Council on Monday when it was claimed that three men were travelling around the Long Sutton area in a transit van, selling fish for up to £180.
Anyone with information should call 101, quoting incident 143 of March 15.