Officers investigating an assault in Rickmansworth are appealing for information and witnesses.
It happened on Scots Hill Road, near to Rickmansworth High School, at 2am on Tuesday, January 1.
The victim, a man in his 20s, was with his friend, also in his 20s, when they became involved in a verbal altercation with a number of people, who then physically assaulted them both.
They were punched in the face, leaving the victim with three fractures to his jaw which have required surgery. His friend was left with no lasting injuries.
Detective Constable Paul Burton, from the Three Rivers Local Crime Unit, said: “I know that some considerable time has passed since the incident however, we have been conducting extensive enquiries and have reason to believe that there are a number of people in the community who have vital information about what happened.
“With it being the early hours of New Years’ Day, we believe there were a number of people around at the time and we would be very keen to speak to anyone who may have seen the assault.
“This was a nasty attack that left the victim requiring extensive hospital treatment, and he is still recovering from his injuries to date.
“I would urge anyone who has information about what happened to contact me straight away, or speak to Crimestoppers anonymously. Do the right thing.”
Any witnesses or anyone with information should contact DC Burton on email@example.com or via the non-emergency number 101, quoting reference 41/1392/19. You can also report information online at herts.police.uk/Report or speak to an operator in our Force Communications Room via online web chat.
Alternatively, you can stay 100% anonymous by contacting the independent charity Crimestoppers on 0800 555 111 or via their untraceable online form at crimestoppers-uk.org. For over 30 years, Crimestoppers has always kept its promise of anonymity to everyone who contacts them.