The investigation into an accident on south west roads in late March has provided police with a possible lead.
The accident was a collision on the Moyston-Great Western Road in Great Western.
The accident happened at around 8.50pm on March 28.
Police are searching for a potential witness who they believe was driving a dark four-wheel drive.
Police believe the four-wheel drive was present at the collision.
Contact Crimestoppers if you have any information.
