[monkeyshine]

I believe it is a juror's right to judge both the law and the defendant.

[m&maz]

It is the jurors right, but in instructing the jury, judges almost always expressly tell the jury that they are not to judge based upon whether or not they beklieve the law to be valid, but instead to simply determone whether or not the law has been broken..
Mention any knowledge of jury nullification during the jury selection process and you are sure to be excused from jury duty...