There are liars, damn liars and then there are statistics!

"as Michael Tonry, professor of law at the University of Minnesota, told us back in February. "Whites are more likely to sell to people they know, and they much more often sell behind closed doors. Blacks sell to people they don't know and in public, which makes them vastly easier to arrest."

Blacks arrested for drugs are more likely to be sent to jail because they're more likely to have had a previous run-in with the law. Police tend to patrol high-crime areas more aggressively, which tend to be the poor areas, which have a higher proportion of minorities. Thus, they're more likely to be stopped for something and have a rap sheet once a drug charge comes along."

http://www.politifact.com/punditfact/statements/2016/jul/13/van-jones/van-jones-claim-drug-use-imprisonment-rates-blacks/