In our quest to determine a working definition of science and what a jury must do we stumbled upon the question of whether juries must find guilt if all of the elements of a crime are proven or can they simply ignore that portion of the jury instruction, given by the judge.
This line is from a model jury instruction available on LexisNexis: “If you all agree the state has proved, beyond a reasonable doubt, each of the three elements listed above, you must find the defendant “guilty.” Texas Criminal Pattern Jury Charges–Intoxication and Controlled Substances§ C5.4.
This is the Black’s Law Dictionary of definition of Jury Nullification:
Jury nullification– (1982) A jury’s knowing and deliberate rejection of the evidence or refusal to apply the law either because the jury wants to send a message about some social issue that is larger than the case itself or because the result dictated by law is contrary to the jury’s sense of justice, morality, or fairness. JURY NULLIFICATION, Black’s Law Dictionary (9th ed. 2009), jury nullification
The bases of jury nullification reach back to the drafting and ratification of the Bill of Rights and are founding principles for Amendment VI of the Constitution. This ability to check the power of the legislature, by the people, seems applicable to what effect science can or will have in the courtroom.