Claim: "Today's marijuana is 300 percent to 800 percent more potent than the pot of yesteryear."
Fact-check: Marijuana legalization opponent Heidi Heilman says today's marijuana is 300 percent to 800 percent stronger than in the past
Verdict: true
Organisation: PolitiFact
Author: C. Eugene Emery Jr.
Date published: 2014-03-30T00:00:00