Aiden O'Brien will go in front of Tuesday's BHA disciplinary inquiry in London to respond to three charges, coming about from denying permission for a second veterinary examination of Cape Blanco, after the horse's victory in the Totesport Dante Stakes at York in May.
Allegedly bringing racing into disrepute is quite possibly the most serious of the regulation offences that the trainer is up against.
Pat Keating, the travelling head groom for O'Brien, will also face the charge of failing to comply with instructions.
Cape Blanco had inflamed a niggling heel injury during the event and was in the process of being readied for the journey back to Ireland by plane at the time, when O'Brien described the instruction requiring another veterinary exam as "insane".
O'Brien was fined Â£5,000 two years past, after charges of breaching the rules of racing were up held, at a BHA inquiry into the use of team strategy in an incident where Duke Of Marmalade won the the Juddmonte International at Newmarket in August 2008.