Marijuana raises safety questions

Legalization has regulators working on rules and standards of production

By: Associated Press - Texarkana Gazette

This photo taken Jan. 4 shows a lab technician loading a tray of marijuana samples into a chromograph at CannLabs in Denver. The chromograph analyzes the samples and reports their chemical content and strength. From potency standards to labeling requirements and even regulations about pesticides and...

DENVER—Marijuana may be coming out of the black market in Colorado and Washington state, but the drug, at least for now, will retain a decidedly underground feel: Users may not know what’s in it.

Less than a year away from allowing pot sales, regulators are grappling with...

Published: 02/13/2013