Equality by lot

A distinction is sometimes made between democracy as a system in which citizens are politically equal and a system in which the “right” decisions are made. In “Rethinking Guilt, Juries, and Jeopardy”, a paper published in the Michigan Law Review in 1992, George Thomas and Barry Pollack argue, in the context of juries, that the two concepts may be theoretically indistinguishable. It is interesting to weigh the strength of their argument and see to what extent it is applicable to citizen judgement in the case of policy making. Thomas and Pollack also go further and use this argument to reason about jury size, an argument which may be interesting and relevant in public policy making as well.

It may be obvious, but it is worth noting anyway, that the arguments made are also relevant to very wide epistemological questions about what is truth, what are facts, the analytical/synthetic distinction, the fact/value distinction, internalism vs. externalism, etc. It turns out that a theory of democracy may require a workable epistemological theory, or at least a part of such a theory.

The purpose of a mechanism for deciding guilt is to impose punishment only on those who deserve it. This goal raises two questions. First, who decides? Second, how can an observer evaluate whether the decisionmaker was right or wrong?

Although citizen juries played a role in the English criminal process at least as far back as 1201 A.D., their role initially was limited to screening cases, much like the present-day grand jury. Thus, a jury would decide whether to hold the accused for the guilt-determining phase, which might be battle or ordeal. Battle on an accusation of felony ended in death for the accused if he lost – the offender would perish either in the battle or from immediate hanging. Ordeal consisted principally of trial by fire and water, which required the accused (and sometimes the accuser) to walk through fire, carry red-hot iron, plunge his hand or arm into boiling water, or be thrown into a pool of water.

The premise underlying both battle and ordeal as guilt-determining mechanisms was that “God would always interpose miraculously to vindicate the guiltless.”

With the dawning of the Renaissance, however, Western culture gradually ceased seeing the hand of God or Satan in every physical event, and the role of citizen juries was extended from screening defendants for trial to determining guilt. As long as God was making the decision, believers did not accept the possibility of error. Once the ultimate decision rested in the hands of citizens, however, error became possible. The difficult, and usually unappreciated, question is how error can occur.
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