However, after an Athlete has been charged with a Code Article 2.1 anti -doping rule violation based on the presence of a Prohibited Substance, Metabolite(s) of a Prohibited Substance, or Marker(s) of the Use of a Prohibited Substa nce or Prohibited Method  in a Sample, then Further Analysis  on that Sample may only be performed with the consent of the Athlete or approval from a hearing body (see Code Article  6.5).