He hasn't fought since 2013 due to a failed drug test in 2014 resulting in a two year suspension leading to retirement. (slickstermagazine.com)
The contract calls for drug testing for employees when deemed appropriate during work, a change from the previous policy, which required that only new employees be tested. (articles.chicagotribune.com)
A new report has questioned the effectiveness of random drug testing in schools, calling for further evidence on their probable impact. (politics.co.uk)