Nikolas Schiller, a co-founder of the group D.C. Marijuana Justice, says two men and two women were arrested by U.S. Capitol police shortly after they started smoking on Monday afternoon.
Pot 'smoke-in' on Capitol grounds leads to 4 arrests →
'The U.S. Capitol Police didn't have to invoke federal law on D.C. land," said DCMJ co-founder Nikolas Schiller.
4/20: D.C. pot activists arrested during free marijuana giveaway on Capitol Hill →