A video has emerged on social media that allegedly shows the moment a man struck a teenager on the head with a shovel in Leeton.
NSW Police would not confirm or deny if the video would be used as part of the brief of evidence against the man who has been charged with one count of common assault.
Police said an 18-year-old man was riding an allegedly unregistered motorbike through the township of Leeton about 11 pm on 30 January.
A number of motorists followed the rider before his motorbike and a vehicle collided on Wamoon Avenue.
Several members of the public, including the driver, approached the rider before one man allegedly approached the rider from behind and struck him in the head with a shovel, causing him to fall to the ground.
The rider was wearing a helmet and was not seriously injured.
Officers attached to Murrumbidgee Police District were notified and commenced an investigation.
Police said that following inquiries, a 42-year-old man attended Leeton Police station about 4:45 pm on 31 January where he was charged with one count of common assault.
The man was granted conditional bail to appear in Leeton Local Court on Tuesday 14 February.
Inquiries continue.
Anyone with information about this incident is urged to contact Crime Stoppers on 1800 333 000 or go to the website Crime Stoppers. Information is treated in strict confidence. The public is reminded not to report information via NSW Police social media pages.