he's not been banned for performance enhancing drugs - so the inference there is a ban for a recreational drug. cocaine is the usual culprit here and afaik, all major sports have bans for use of these under the "bringing the sport into disrepute" banner.
recreational drugs can also stem hunger pangs so it's also a way of keeping weight off which is very important for jockeys.
and he's previously been cautioned for possession of cocaine, back in 1993
Edited: 05/12/2012 at 13:29