The British motorcyclist charged in the death of a prominent doctor on Koh Phangan will also face charges of running a tour boat business through a Thai nominee.
The suspect, Duncan Wilcock, 51, has already been charged with reckless driving causing serious injury, fleeing the scene of an accident, driving without a valid licence, operating an unregistered vehicle without compulsory insurance, drug use and driving under the influence of alcohol causing serious injury.