Does marijuana use really cause psychotic disorders?

Alex Berenson says the drug causes ‘sharp increases in murders and aggravated assaults’. As scientists, we find his claims misinformed and reckless
The Guardian (UK)
Sunday, January 20, 2019

Does marijuana cause psychotic disorders such as schizophrenia, and do associated symptoms like paranoia lead to violent crimes? That’s what writer Alex Berenson is claiming. As part of his new book promotion, Berenson published a New York Times op-ed that also blames the drug for “sharp increases in murders and aggravated assaults” purportedly observed in some states that allow adult recreational marijuana use. As scientists with a combined 70-plus years of drug education and research on psychoactive substances, we find Berenson’s assertions to be misinformed and reckless.