The Quirin defendants were tried by military commission. The validity of those military commissions were upheld by the Supreme Court, and most of the defendants were hanged.
Where this impacts on the current case is with the case of Herbert Haupt, one of the saboteurs. He was a naturalized American citizen before returning to his native Germany and becoming an agent for the Abwehr.
[QUOTE=ex parte Quirin]
Petitioners, and especially petitioner Haupt, stress the pronouncement of this Court in the Milligan case that the law of war ‘can never be applied to citizens in states which have upheld the authority of the government, and where the courts are open and their process unobstructed’. Elsewhere in its opinion, the Court was at pains to point out that Milligan, a citizen twenty years resident in Indiana, who had never been a resident of any of the states in rebellion, was not an enemy belligerent either entitled to the status of a prisoner of war or subject to the penalties imposed upon unlawful belligerents. We construe the Court’s statement as to the inapplicability of the law of war to Milligan’s case as having particular reference to the facts before it. From them the Court concluded that Milligan, not being a part of or associated with the armed forces of the enemy, was a non-belligerent, not subject to the law of war save as-in circumstances found not there to be present and not involved here-martial law might be constitutionally established.
The Court’s opinion is inapplicable to the case presented by the present record. We have no occasion now to define with meticulous care the ultimate boundaries of the jurisdiction of military tribunals to try persons according to the law of war. It is enough that petitioners here, upon the conceded facts, were plainly within those boundaries, and were held in good faith for trial by military commission, charged with being enemies who, with the purpose of destroying war materials and utilities, entered or after entry remained in our territory without uniform-an offense against the law of war. We hold only that those particular acts constitute an offense against the law of war which the Constitution authorizes to be tried by military commission…
[/QUOTE]
So basically, if you take up arms against your country and are then captured as an unlawful combatant, you aren’t entitled the full protections of the courts granted to normal criminal defendants. You ceded those by your actions.
Now, nobody supposes that you aren’t entitled to some protections under the law, many of which are guaranteed by treaty obligations entered into by us and by that tribunal process that is by now pretty well established, and which we are now trying to make more applicable to current conditions. But the case law here cannot be ignored, and neither can the fact that the criminal courts aren’t appropriate to try these cases, even on the rare instance where a citizen might be involved.
A well run tribunal system ought to be the goal here.