Not sure what I think about him, but there is still a lot of work and studying to do by all. I did see where crime had increased in legal states vs their border states, but there was no link discovered. Also saw where traffic fatalities and accidents increased and then quickly decreased to pre-legalization numbers. FWIW, scientists aren't a fan of Mr Berenson. Maybe the jury is still out right now.

From his wiki page

"He is the author of the controversial 2019 book Tell Your Children: The Truth About Marijuana, Mental Illness and Violence that has been denounced as alarmist and inaccurate by many in the scientific and medical communities because of his claims that cannabis causes psychosis and violence; scientists state that he is drawing inappropriate conclusions from the research, primarily by inferring causation from correlation"

From another article:

Even more damning is some of the criticism from the folks whose expertise Berenson claims to be drawing from. Ziva Cooper is the research director for UCLA’s Cannabis Research Initiative and served as a committee member on the 468-page National Academy of Sciences, Engineering, and Medicine report cited by Berenson and Gladwell. In a conversation with Rolling Stone, Cooper asserts that Berenson completely misunderstood the report’s conclusions around schizophrenia. “To say that we concluded cannabis causes schizophrenia, it’s just wrong, and it’s meant to precipitate fear,” she says. Rather, the scientists found an association between schizophrenia and cannabis use, but do not yet have enough evidence to determine causality. As Cooper puts it: “People who have schizophrenia are also known to be very heavy tobacco smokers, but we don’t say that tobacco causes schizophrenia.”

The idea that weed causes psychosis and schizophrenia is Berenson’s core argument, and the research review Cooper refers to is an important piece of evidence for that argument. I’m not a scientist, and I’m not a statistician, but it sure doesn’t look good when the people whose research you draw your conclusions from announce that you have misinterpreted their research.
[Post edited by reestuart at 11/01/2019 1:08PM]