"Tricks and treachery," said Benjamin Franklin, "are the practice of fools that have not wit enough to be honest." Had the kindly philosopher been familiar with all the exigencies of the criminal law he might have added a qualification to this somewhat general, if indisputably moral, maxim. Though it doubtless remains true as a guiding principle of life that "Honesty is the best policy," it would be an unwarrantable aspersion upon the intellectual qualities of the members of the criminal bar to say that the tricks by virtue of which they often get their clients off are "the practice of fools." On the con............