Detectives are investigating how a 36-year-old man suffered serious head injuries.
The man was found outside a shop in Garibaldi Road, Forest Town, at about 9pm on Wednesday, March 27.
He had four injuries to his head and neck and needed hospital treatment.
Detective Constable Lee Keeling said: "We would like to hear from any one who might have been in the area around this time.
"Did you see anything out of the ordinary? Perhaps you saw how this man sustained these injuries or have information that can help us. If so please get in touch."
Anyone with any information should contact DC Keeling on 101 ext 805 3463.
Alternatively call Crimestoppers anonymously on 0800 555 111.
