First, prove high-potency THC is safe. Then you can sell it.

The Sun recently summarized the findings from a University of Colorado School of Public Health review of 452 studies regarding high-potency marijuana concentrates, a report that was required by the Colorado General Assembly.

The article concludes by noting that School of Public Health Dean Dr. Jonathan Samet “says the Colorado School of Public Health review should come with a caution. While it may be tempting to look at the limited evidence on effects and conclude it means high-potency THC isn’t harmful, Samet said it’s better for consumers to err on the safe side. After all, as the old scientific saying goes, absence of evidence is not absence of harm.”

The researchers, in essence, punted the question. 

“It’s not an easy scientific question,” Samet said….