Law oscillates. It exists in time and therefore in movement. Law changes, and this change marks the passage of time. Change possibly is time (Reichenbach, 1958; Grünbaum, 1963; cf. Smart, 1969). Law’s movement, however, is not simply linear. It is not a one-way journey from A to B. It is, rather, an oscillation between centres of gravity. Law moves from A to B, then back to A again. Law returns. Law’s oscillation takes many forms, but one of the most basic is the movement of law between order and disorder. Law seeks order, but social reality intrudes. Order becomes disorder.