See, for example, theCAS decision in N., J., Y., W. v. FINA,CAS 98/208, 22 December 1998.burden shifts to the Anti-DopingOrganization to prove to thecomfortable satisfaction of thehearing body that the departure didnot change the test result.Competition ) because of their potential to enhanceperformance in future Competitions or their maskingpotential and those substances and methods which areprohibited In-Competition only.