Doping is an test which can be conducted by the sports events organizers at any time in a tournament to check whether all the players that are participating in the event are doing so actually on the neutral basis indeed , there are many people that are indeed serving the industry and thus the action committee can take their tests at anytime , Louis walker now becomes the 7th player in the last 5 years to be nominated for taking doping positive medicines , A ban of 3 years has been placed and he can not participate in any sports event of any level for next 3 years from now on according to news sources