Detectives are calling for information after an assault last month which left a man with a broken jaw.
The 23-year-old was walking along Lake Street in Northbridge with a trio of female friends who were dressed in Christmas outfits when he was approached by a man.
Police say the man verbally abused the women and when he was confronted, punched the man to the face, causing him to fall to the ground.
The injured man, who was visiting Perth from Melbourne, needed metal screws and plates inserted into his jaw and lost feeling to his bottom lip and chin after the attack.
Those with information are asked to contact Crime Stoppers on 1800 333 000.