POLICE are trying to trace this person in connection with an assault in Poole.
The incident occurred at the Harbourside Festival, in Baiter Park, at around 10.30pm on Saturday, July 29.
The victims, a 19-year-old man from Bournemouth, suffered a broken jaw and nerve damage in the incident.
PC Matthew Brown, of Poole police, said: “Our investigation into this assault is ongoing and we have obtained an image of a man who we would like to speak to as part of our enquiries.
“I would urge anyone who recognises him to please contact us.
“I would also like to hear from any witnesses or anyone with further information regarding this incident.”
Anyone with information should contact Dorset Police via www.dorset.police.uk or by calling 101, quoting incident number 55230119169. They can also contact Crimestoppers anonymously on 0800 555 111.