Police in Jersey are trying to determine who was in control of a motorcycle involved in a collision in which a man died and another was hurt.
Polish national Rafal Maolodzinski, 30, was killed in the crash in Trinity involving the Kawasaki motorcycle and a Smart car on Sunday afternoon.
A 23-year-old man also on the bike has been airlifted to a hospital in Southampton for treatment.
Police confirmed neither man had a crash helmet or protective clothing.
Officers said they were still investigating who was operating the machine and who was the pillion passenger.
Crash helmets are compulsory for motorcycle riders in Jersey.
Motorcycling instructors said they were also emphasising how important it was to wearing protective equipment.
Bob Staddon, director of the Jersey School of Motorcycling, said: "We don't always consider the impact or having an accident on a motorcycle.
"We are more likely to have an accident on one than in a car and, of course, we don't have the impact protection around.
"When we fall off it will hurt, and some of those injuries you can have for the rest of your life."
The motorcycle collided with a Smart car at about 1600 BST on Sunday on Route des Cote du Nord in Trinity.
The man and woman inside were unhurt, but left in a state of shock.