Where these Anti -Doping Rules place the burden of proof upon the Athlete or other Person alleged to have committed an anti -doping rule violation to r ebut a presumption or establish specified facts or circumstances, except as provided in   Articles  3.2.2 and 3.2.3, the standard of proof shall be by a balance of probability.10  3.2 Methods of Establishing Facts and  Presumptions   Facts related to anti -doping rule violations may be established by any reliable means, including admissions.11 The following rules of proof shall be applicable in doping cases:   3.2.1  Analytical methods or Decision Limits approved by WADA after consultation within the relevant scientific co mmunity or which have been the subject of peer review are presumed to be scientifically valid.