Last September, The Times reported that Justify, the 2018 Triple Crown winner, failed a drug test shortly before the Kentucky Derby. California racing officials spent four months investigating the failed test, long enough for Justify to not only compete in the Derby, but also win it, along with the Preakness and the Belmont Stakes. In an unusual closed-door session, the racing board, whose chairman had a horse with Justify’s trainer, Bob Baffert, cleared him of wrongdoing.
Article source: https://www.nytimes.com/2020/05/02/sports/horse-racing/kentucky-derby-triple-crown.html