BBC Inside track on doping scandal - key questions for racing

Rumours and whispers whirl around horse racing like few other sports, and perhaps never more so than now, as it deals with the racehorse doping scandal.

Within the past fortnight, Mahmood Al Zarooni has been banned for eight years after admitting giving anabolic steroids to 15 horses, while fellow Newmarket trainer Gerard Butler faces a separate British Horseracing Authority (BHA) inquiry after nine of his stable tested positive.
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