A reveller hit a barman over the head with a pint glass leaving him needing stitches.
Police have released this CCTV footage and are appealing for information after the assault following a birthday party on October 25.
The information was only released by police yesterday as an appeal for witnesses was issued.
At around 11.30pm on the Friday night members of bar staff at the Colonial Hotel on South Promenade were asking people to clear the bar area.
But a guest lashed out and struck one of the bar staff on the head with a glass, smashing it and leaving the victim with a cut to the face and needing hospital treatment.
DC Barron Moseley said: “This was a nasty, unprovoked assault and we are keen to trace the person responsible. I would appeal to the people at the party to come forward and assist us in identifying the man involved. Someone at the party will know this man and we are keen to speak to him.”
Anyone with any information can contact police on 101 or Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org