 We need first to consider whether, at the theoretical level, any of these forms of argument is powerful enough to refute the case for the legalization of voluntary euthanasia. We will then be in a position to comment on the alleged empirical support from the experiences of Hitler’s Germany and, more recently, of legalized euthanasia in The Netherlands and elsewhere, for the existence of a slippery slope that will supposedly come into being with the legalization of voluntary euthanasia.