As outlined in his 2012 autobiography , Mitcham commenced use of recreational methamphetamine in 2011 , becoming addicted to the substance .
As outlined in his 2012 autobiography , Mitcham subsequently recovering with the assistance of Narcotics Anonymous .
As outlined in his 2012 autobiography , Mitcham commenced use of recreational methamphetamine in 2011 , becoming addicted to the substance and subsequently recovering with the assistance of Narcotics Anonymous .