The Rockefeller Drug Laws of 1973 radically changed how the American justice system worked. Under these New York State laws, the penalty for selling small amounts of heroin, opium, or marijuana became a minimum of 15 years to life in prison, and a maximum of 25 years to life in prison. [https://en.wikipedia.org/wiki/Rockefeller_Drug_Laws wikipedia]
Though not seen at the time, these laws marked a turning point in our approach to crime. Both the states and the federal government began to escalate “tough on crime” laws.
As of 2015, twenty-eight states have some form of three strikes law, and penalties for drug possession remain high.[http://www.legalmatch.com/law-library/article/three-strikes-laws-in-different-states.html cite]
The prison population went from 330,000 to over 2.3 million at its peak. Blacks and other minorities were hit the hardest.
Joseph Perisco says that Rockefeller, previously a fan of treatment over punishment, was influenced by zero-tolerance policies of the time being introduced in Japan.
The laws were seen as a conservative white reaction to social decay, but recent research highlights the role of black communities in pushing for them. See Black Silent Majority
Campaign Zero attempts to undo some of the damage of the tough-on-crime policies.