A major study questioned the evidence for safe injection sites. It’s now been retracted

The study suggested the evidence for safe injection sites was weak. But it had its own fatal methodological flaw
Vox (US)
Thursday, September 27, 2018

A major meta-analysis published earlier this year that questioned the empirical evidence for supervised drug consumption sites has been retracted by the International Journal of Drug Policy. But the meta-analysis, which I reported on shortly after it published, concluded that supervised consumption sites have a small favorable relation to drug-related crimes, but no significant effect on several other outcomes, like overdose mortality and syringe sharing. In short, the meta-analysis didn’t conclude that supervised consumption sites were bad, but they didn’t appear to do much on key outcomes like overdose death. But the meta-analysis apparently had serious methodological flaws in how it evaluated outcomes.