In 2001, David was involved in a car accident, where he received a serious head injury.
He was not wearing a seatbelt.
David spent three years in hospital recovering from his injuries, which have left him with brain damage and permanent use of a wheelchair.
David's dad, John, shares the life-changing impact David's injuries have had on his life.
Audio credit: BenSound_aeon_S0OXN8EUDMBXONDL
PoliceScotland