If the Athlete  or other Person  rebuts the preceding presumption by showing that a departure from the International Standard  for Laboratories occurred which could reasonably have caused the Adverse Analytical Finding , then WAKO  shall have the burden to establish that such departure did not cause the Adverse Analytical Finding .14  3.2.3   Departures from any o ther International S tandard  or other anti -doping rule or policy set forth in the Code  or these Anti -Doping  Rules shall not invalidate analytical results or other evidence of an anti -doping rule violation, and shall not constitute a defense to an anti -dopin g rule violation;15 provided , however, if the Athlete  or other Person  establishes that a departure from one of the specific International Standard  provisions listed below could reasonably have caused an anti-doping rule violation based on an Adverse Analyti cal Finding  or whereabouts failure, then WAKO  shall have the burden to establish that such departure did not cause the Adverse Analytical Finding  or the whereabouts failure:   (i)  a departure from the International Standard  for Testing  and Investigations r elated to Sample  collection  or Sample  handling which could reasonably have caused an anti -doping rule violation based on an Adverse Analytical Finding , in which case WAKO shall have the burden to establish that such departure did not cause the Adverse Analytical Finding ;  14  [Comment to Article 3.