PC Phil Robertson is appealing for witnesses following a collision involving a car and a motorcycle in Corhampton last month.
The traffic Police officer based at the Road Police at Havant is particularly keen to speak with a member of the public who came to the aid of the motorcyclist following the collision.
Shortly after 1pm on Tuesday August 30, a black Yamaha R6 motorcycle collided with a light blue Nissan Micra on the A32 near to Stocks Lane.
As a result, the 27-year-old motorbike rider sustained serious and potentially life-changing injuries.
PC Phil Robertson, of Havant Roads Policing Unit, said: “Police are hoping to locate a male member of the public who came to the aid of the rider.
“The man, known as Max, spoke to the rider’s girlfriend on the telephone and may hold vital evidence relating to the accident.
“We would also like to hear from any other person who may have witnessed the incident.”
Anyone with information is asked to contact PC Robertson on 101 quoting 44160326229, or call Crimestoppers anonymously on 0800 555 111.