The Mexico City Olympics in 1968 were the first games to introduce anti-doping laws which resulted in Hans-Gunnar Liljenwall becoming the first-ever Olympian to be disqualified from a Games for drug abuse . A steady hand and nerves of steel are required for competitive pistol shooting. Swedish Modern Pentathlete, Hans-Gunnar Liljenwall, achieved this by steadying his nerves with a strong drink.… More The first-ever Olympian to be disqualified from a Games for drug abuse.