Meta-study debunks claims of next-day impairment from cannabis

Results of the Sydney University study.

Yet more evidence shows up the unfair and draconian drug driving laws in NSW and other states, which can heavily convict people for cannabis traces detected days after consumption.

“Most studies didn’t detect ‘next day’ effects of cannabis use, and the few that did had significant limitations,” Dr McCartney said.

“Overall, it appears that there is limited scientific evidence to support the assertion that cannabis use impairs ‘next day’ performance.