To provide this advice, Nutt convened a panel of drug experts from different disciplines and asked them to rate each drug in question on how dangerous it was for its user; for its user's family; and for broader society. These rankings were averaged, and then a statistical model was used to determine which drugs were *always* very dangerous, no matter which group's safety you prioritized, and which drugs were *never* very dangerous, no matter which group you prioritized.
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