People have been warned that they may face injury compensation claims if they misuse all-terrain vehicles such as quad bikes after three men received head injuries on a West Yorkshire farm.
Farmer Gerald Parker was prosecuted for an incident which took place last year, in which he used a quad bike to carry two employees to an outlying field.
Mr Parker lost control of the vehicle which then tumbled into a ditch 12-feet deep.
He was not wearing a safety helmet himself and had failed to provide any for his passengers.
Health and Safety Executive (HSE) inspector Charlie Callis said the dangers of all-terrain vehicles are often underestimated.
"There have been a number of serious incidents, many of them high profile," he added.
"On average two people die each year in all-terrain vehicle incidents on farms with yet many more resulting in serious injury."
A Borders farm was recently fined GBP 6,650 after a worker died in a crash involving a quad bike.