▁ 1 9 9 1 ▁World ▁Championships ▁in ▁Tokyo ▁but ▁made ▁the ▁Canadian ▁Olympic ▁team ▁again ▁in ▁ 1 9 9 2 ▁in ▁Barcelona , ▁Spain ▁after ▁finishing ▁second ▁at ▁the ▁Canadian ▁Olympic ▁tri als ▁to ▁Brun y ▁Sur in . ▁He ▁missed ▁the ▁ 1 0 0 ▁met re ▁final s ▁at ▁the ▁Olympics , ▁however , ▁finishing ▁last ▁in ▁his ▁semi - final ▁heat ▁after ▁st umb ling ▁out ▁of ▁the ▁blocks . ▁ ▁In ▁ 1 9 9 3 , ▁he ▁won ▁the ▁ 5 0 ▁metres ▁on ▁January ▁ 7 ▁in ▁Gren o ble , ▁France , ▁in ▁ 5 . 6 5 ▁seconds , ▁just ▁ 0 . 0 4 ▁seconds ▁sh y ▁of ▁the ▁world ▁record . ▁However , ▁he ▁was ▁again ▁found ▁guilty ▁of ▁do ping ▁just ▁after ▁the ▁race ▁– ▁this ▁time ▁for ▁excess ▁test oster one ▁– ▁and ▁was ▁subsequently ▁b anned ▁for ▁life ▁by ▁the ▁I A AF . ▁Federal ▁amateur ▁sport ▁minister ▁Pierre ▁Cad ieux ▁called ▁Johnson ▁a ▁national ▁dis gra ce , ▁and ▁suggested ▁he ▁consider ▁moving ▁back ▁to ▁J ama ica . ▁Johnson ▁commented ▁that ▁it ▁was ▁" by ▁far ▁the ▁most ▁dis g ust ing ▁comment ▁[ he ▁had ] ▁ever ▁heard ". ▁In ▁April ▁ 1 9 9 9 , ▁a ▁Canadian ▁adj ud icator ▁ruled ▁that ▁there ▁were ▁proced ural ▁errors ▁in ▁Johnson ' s ▁lifetime ▁ban ▁and ▁allowed ▁him ▁to ▁appeal . ▁The ▁decision ▁meant ▁Johnson ▁could ▁techn ically ▁run ▁in ▁Canada ▁but ▁nobody ▁would ▁comp