"It is a difficult situation and according to protocol there are certain procedures we have to go through." he said.
The Jockey Club have increased random drug testing considerably of late, and if Miles is found guilty he will be the fourth rider in as many years to be punished for cocaine use.
Apprentice Philip Shea claimed his drink had been spiked when he tested positive in 2000.
Dean Gallagher owned up when he tested positive for a second time in 2002, while Francis Norton brought a novel twist to his case by arguing that an exotic tea and contaminated banknotes contributed to the positive test which saw him banned for four months last year.
Meanwhile, Kieren Fallon headed back to Leicester today hoping the racecourse doctor would allow him to continue his faltering bid to stop Frankie Dettori taking his jockeys' title.
Fallon took a pummelling in a heavy fall on Leicester's Monday card and there was an element of resignation
about his vow to "bat on because you never know what might happen."
Fallon has yet to hear whether he will be riding Ouija Board in the Breeders' Cup at Lone Star Park on 30 October, but the European team has lost one of its main players now that plans to run the Arc de Triomphe hero Bago in the Breeders' Cup Classic have been shelved.
News that the Nashwan colt will be saved for a European campaign in 2005 prompted Corals to cut the Dubai World Cup hero Pleasantly Perfect from 2-1 to 7-4 favourite in their Classic market.
