Police are appealing for witnesses and information after a policeman was assaulted in Hillside in North West London.
The attack happened at 5.50pm on Saturday 2nd June. A number of police officers attended Hillside in response to a disturbance.
Whilst searching one youth, the officer was knocked to the ground. His attacker then stamped on his head knocking him unconscious. The youngster then made off towards Hay Lane.
The suspect is described as a black male, aged around 20. Police say he is around 5 feet 8 inches tall and was wearing a dark zipped hoodie, that had two red stripes on the sleeves, dark jeans and a dark beanie hat.