The principle of anti-doping testing
The biological samples are normally provided to the Swiss Laboratory for Doping Analyses by various sports authorities (Swiss Olympic and other national and international federations). These authorities are responsible for collecting samples in the field according to a standard procedure summarized in the figure on the right described in detail on www.antidoping.ch.
The collected biological samples are then anonymyzed and delivered to LAD as rapidly as possible. In each case, the frozen and sealed B sample is stored in a secure freezer. It may be used at a later stage in case of a positive test and as part of a counter-analysis if requested by the suspected athlete. Counter-analysis is carried out in the presence of the athlete or one of his or her representatives,
The seal of the A sample is broken and the contents is then used for routine analyses to detect WADA prohibited substances using highly selective and specific methods. In case of a positive result, the same A sample is subjected to a confirmation, which is a second more specific test.
In case of negative or adverse analytical finding, a specific report is sent to the controlling sports authorities within 10 working days.