2.5  Tampering  or Attempted Tampering  with any Part of Doping Control  by an Athlete  or Other Person   2.6  Possession  of a Prohibited Substance or a Prohibited Method  by an Athlete  or Athlete Support Person   2.6.1  Possession  by an Athlete  In-Competition of any  Prohibited Substance or any Prohibited Method , or Possession by an  Athlete Out -of-Competition of any  Prohibited Substance or any Prohibited Method which is prohibited Out-of-Competition  unless the Athlete  establishes that the  For example, Use may be established based upon reliable analytical data from the analysis of an A Sample (without confirmatio n from an analysis of a B Sample) or from the analysis of a B Sample alone where the Anti -Doping Organization provides a satisfactory explanation for the lack of confirmation in the other Sample.]