On July 17, 2014, the British Horse Racing Authority announced that five horses had tested positive for the banned substance morphine at recent meets. One of the horses is owned by the Queen. Estimate, a five-year-old filly, tested positive after placing second in the Gold Cup at Royal Ascot, a race she won in 2013.

It is believed Estimate consumed contaminated feed. If this is not proven to be the case, however, the filly could be disqualified from the race and forfeit the £80,625 prize money.

A statement by John Warren, the Queen’s Bloodstock and Racing Advisor, said: “On Thursday July 17 the British Horseracing Authority (BHA) announced that a number of post-race samples, obtained from recent race meetings, had been found to indicate the presence of morphine, which is a prohibited substance on race days. Five horses, under the care of various trainers, were affected.

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