A 54-year-old Boston man remains in custody after being arrested on suspicion of theft at the Harris Amusement Arcade in Boston.
Police were called to the scene on the Market Place at around 8.35am on Wednesday, January 24, and found a man covered in a non-corrosive household cleaning product.
The man was taken to Boston Pilgrim Hospital, with injuries not described as serious.
Officers have said that money was missing from the arcade and investigations into the incident continue.
Any witnesses should call Lincolnshire Police on 101, quoting incident number 82 of January 24.