The Supreme Court of Canada summarised one of the most thorough reviews of the international evidence as follows:
Finally, it is argued that without an absolute prohibition on assisted dying, Canada will descend the slippery slope into euthanasia and condoned murder. Anecdotal examples of controversial cases abroad were cited in support of this argument, only to be countered by anecdotal examples of systems that work well. The resolution of the issue before us falls to be resolved not by competing anecdotes, but by the evidence. The trial judge, after an exhaustive review of the evidence, rejected the argument that adoption of a regulatory regime would initiate a descent down a slippery slope into homicide. We should not lightly assume that the regulatory regime will function defectively, nor should we assume that other criminal sanctions against the taking of lives will prove impotent against abuse.