Praised be the Double Jeopardy weapon
No person shall "be twice put in jeopardy of life or limb." U.S. Const. Amend. V.
In 2002, then public defender lawyer Nancy Forster and I won a joint Maryland landmark double jeopardy victory in Taylor, et al., v. Maryland. Full details are here.
Today, the United States Supreme Court made as clear as day that even if a judge orders an acquittal based on a mistaken view of the law, double jeopardy protections prevents a retrial. Evans v. Michigan, __ U.S. ___ (Feb. 20, 2013). Nice.