Virtually every burden of proof is influenced by a rule regarding relitigation. In criminal law, the prosecutor is prevented from repeatedly drawing from the urn, as it were, by the double-jeopardy rule, which reinforces the beyond-a-reasonable-doubt standard. We suggest that if law were to permit defendants to waive double-jeopardy protection, private and social benefits might follow. The benefits derive from the likelihood that prosecutors-like most people who can take a test but once-overinvest in preparation. Somewhat similarly, though far afield, deficit spending by a legislature might be linked to the fact that spending proposals that are rebuffed can be retested or revisited. We contemplate offering defendants the option of waiving their double-jeopardy protection in anticipation of reduced prosecutorial investment. Innocent defendants might then be more likely to waive, in which case there will be socially beneficial sorting of defendants.
