Police are appealing for witnesses following a serious assault in Ebley Meadows, near Stroud at around 9.30pm on Saturday 1 May.
A 23-year-old man was punched in the face causing him serious injuries.
He received medical treatment where four metal plates were screwed to his jaw to hold it together.
The man is now in a stable state.
There were a number of people in the area at the time and investigating officers would like to hear from anyone who witnessed the incident.
Police have investigated and are now asking anyone who witnessed the incident or have any information please contact police on 101 quoting incident 503 of 1 May. You can also provide information anonymously by calling independent crime-fighting charity Crimestoppers on 0800 555 111.