Justice is not taught in law schools. Trial attornies advocate on behalf of their client. Prosecutors advocate on behalf of the People. Defense attornies advocate on behalf of the defendant or defendants. In the minds of most defense attornies and prosecutors, a trial is not about a search for truth or the pursuit of justice. Rather, it's about winning. And to the extent that judges rule certain evidence to be admissable or not, consider the motions that precede such rulings to be but a means to an end; i.e., winning.