In the constitution it states that any federal crime being charged to any citizen that it must be a Jury trial and in that state where the crime took place. I believe that this was done in order to ensure that there would be a check on the federal government itself because a Jury of the accused peers from the same state meant that the jurors were people selected from the state itself. This ensured a jury that was biased towards the accused and it done one more thing and that was to ensure the possibility of jury nullification of federal law. I'm not sure about the history of juries and jury nullification but I think that it was always an accepted right of juries to nullify the enforcement of the law. This protected people from malicious prosecution and provided an essential check against the government and in this case it would be the federal government. This should be restored so that the federal law enforcement activities can be nullified in the states by a jury. It provides a check against the federal government in all cases.