Ross was, in H.L.A. Hart's words, 'the most acute and best-equipped philosopher' of Scandinavian legal realism. On Law and Justice provides a comprehensive outline of his legal realist position, offering a consistently empirical research programme that simultaneously recognizes the distinctly normative character of law. Ross's legal realism avoids the standard critiques against behaviourist reductionism while still remaining categorically distinct from legal positivism and natural law.