The trial by jury, be it observed, was the only real barrier
interposed by them against absolute despotism. Could this trial,
then, have been such an entire farce as it necessarily must have
been, if the jury had had no power to judge of the justice of the
laws the people were required to obey? Did it not rather imply that
the jury were to judge independently and fearlessly as to
everything involved in the charge, and especially as to its intrinsic
justice, and thereon give their decision, (unbiased by any
legislation of the king,) whether the accused might be punished?
The reason of the thing, no less than the historical celebrity of the
events, as securing the liberties of the people, and the veneration
with which the trial by jury has continued to be regarded,
notwithstanding its essence and vitality have been almost entirely
extracted from it in practice, would settle the question, if other
evidences had left the matter in doubt.

Besides, if his laws were to be authoritative with the jury, why
should John indignantly refuse, as at first he did, to grant the
charter, (and finally grant it only when brought to the last
extremity,) on the ground that it deprived him of all power, and
left him only the name of a king? He evidently understood that the
juries were to veto his laws, and paralyze his power, at discretion,
by forming their own opinions as to the true character of the
offences they were to try, and the laws they were to be called on to
enforce; and that "the king wills and commands" was to have no
weight with them contrary to their own judgments of what was
intrinsically right.[9]

The barons and people having obtained by the charter all the