Horse racing trainer Evan Williams has been found guilty of causing grievous bodily harm after attacking a dog walker with a hockey stick, leaving the victim with a broken arm.

The 54-year-old trainer, who has horses that compete in the Grand National, mistook the dog walker for a poacher engaged in lamping - the practice of hunting rabbits and foxes at night on private land using bright lights.

The incident occurred when Williams believed he had discovered people illegally hunting on private property. The confusion led to the violent confrontation that resulted in serious injury to the innocent dog walker.

Williams will face sentencing next month for the assault. The case highlights the risks of taking law enforcement into one's own hands and the potential consequences of mistaken identity in confrontational situations.

The conviction represents a significant legal outcome for the prominent figure in horse racing, whose career has included training horses for one of Britain's most prestigious racing events.