Footage of an incident in KFC in Torquay has been released on Youtube.
The incident happened on 6pm on Saturday, January 25.
The footage shows two men throwing a food and a high chair whilst in the fast food restaurant.
The men are suspected of attacking a Special constable after he left KFC. He lost conciousness and was left with severe bruising.
The Special Constable had intervened inside the restaurant when the men had been abusive towards staff.
Anyone who knows any information should call the police on 101