[BostonCard]

Boston Card, steroids weren't banned until the public demanded it.  Which was after many were using.

Steroids have been on the banned substance list since 1991.

http://www.espn.com/mlb/topics/_/page/the-steroids-era

Though steroids have been banned in MLB since 1991, the league did not implement leaguewide PED testing until 2003. The lack of testing meant it was unlikely players using PEDs would get caught. After years of allegations, a federal investigation into The Bay Area Laboratory Co-Operative (BALCO) -- which provided supplements to several prominent major leaguers -- and later Jose Canseco's autobiography "Juiced" revealed how widespread PED use had become in baseball.

Also, many of the drugs were not legal.

BC

[BostonCard]

Boston Card, steroids weren't banned until the public demanded it.  Which was after many were using.

Steroids have been on the banned substance list since 1991.

http://www.espn.com/mlb/topics/_/page/the-steroids-era

Though steroids have been banned in MLB since 1991, the league did not implement leaguewide PED testing until 2003. The lack of testing meant it was unlikely players using PEDs would get caught. After years of allegations, a federal investigation into The Bay Area Laboratory Co-Operative (BALCO) -- which provided supplements to several prominent major leaguers -- and later Jose Canseco's autobiography "Juiced" revealed how widespread PED use had become in baseball.

Also, many of the drugs were not legal.

BC