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- 4  [Comment to Article 2.2: It has always been the case that Use or Attempted Use of a Prohibited Substance or Prohibited Method  may be established by any reliable means.