 Legal probabilism is a research program that relies on probability theory to analyze, model and improve the evaluation of evidence and the process of decision-making in trial proceedings. While the expression “legal probabilism” seems to have been coined by Haack (2014b), the underlying idea can be traced back to the early days of probability theory (see, for example, Bernoulli 1713). Another term that is sometimes encountered in the literature is “trial by mathematics” coined by Tribe (1971). Legal probabilism remains a minority view among legal scholars, but attained greater popularity in the second half of the twentieth century in conjunction with the law and economics movement (Becker 1968; Calabresi 1961; Posner 1973).