Duke Law School

Program in Public Law

Hamdi v. Rumsfeld

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HAMDI
v.
RUMSFELD
____ U.S. ____ (June 28, 2004)

Justice O'Connor announced the judgment of the Court and delivered an opinion, in which The Chief Justice, Justice Kennedy, and Justice Breyer join.

At this difficult time in our Nation's history, we are called upon to consider the legality of the Government's detention of a United States citizen on United States soil as an "enemy combatant" and to address the process that is constitutionally owed to one who seeks to challenge his classification as such. The United States Court of Appeals for the Fourth Circuit held that petitioner's detention was legally authorized and that he was entitled to no further opportunity to challenge his enemy-combatant label. We now vacate and remand. We hold that although Congress authorized the detention of combatants in the narrow circumstances alleged here, due process demands that a citizen held in the United States as an enemy combatant be given a meaningful opportunity to contest the factual basis for that detention before a neutral decisionmaker.

I

On September 11, 2001, the al Qaeda terrorist network used hijacked commercial airliners to attack prominent targets in the United States. Approximately 3,000 people were killed in those attacks. One week later, in response to these "acts of treacherous violence," Congress passed a resolution authorizing the President to "use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks" or "harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons." Authorization for Use of Military Force ("the AUMF"). Soon thereafter, the President ordered United States Armed Forces to Afghanistan, with a mission to subdue al Qaeda and quell the Taliban regime that was known to support it.

This case arises out of the detention of a man whom the Government alleges took up arms with the Taliban during this conflict. His name is Yaser Esam Hamdi. Born an American citizen in Louisiana in 1980, Hamdi moved with his family to Saudi Arabia as a child. By 2001, the parties agree, he resided in Afghanistan. At some point that year, he was seized by members of the Northern Alliance, a coalition of military groups opposed to the Taliban government, and eventually was turned over to the United States military. The Government asserts that it initially detained and interrogated Hamdi in Afghanistan before transferring him to the United States Naval Base in Guantanamo Bay in January 2002. In April 2002, upon learning that Hamdi is an American citizen, authorities transferred him to a naval brig in Norfolk, Virginia, where he remained until a recent transfer to a brig in Charleston, South Carolina. The Government contends that Hamdi is an "enemy combatant," and that this status justifies holding him in the United States indefinitely–without formal charges or proceedings–unless and until it makes the determination that access to counsel or further process is warranted.

In June 2002, Hamdi's father, Esam Fouad Hamdi, filed the present petition for a writ of habeas corpus under 28 U. S. C. § 2241 in the Eastern District of Virginia, naming as petitioners his son and himself as next friend. The elder Hamdi alleges in the petition that he has had no contact with his son since the Government took custody of him in 2001, and that the Government has held his son "without access to legal counsel or notice of any charges pending against him." The petition contends that Hamdi's detention was not legally authorized. It argues that, "[a]s an American citizen, . . . Hamdi enjoys the full protections of the Constitution," and that Hamdi's detention in the United States without charges, access to an impartial tribunal, or assistance of counsel "violated and continue[s] to violate the Fifth and Fourteenth Amendments to the United States Constitution." The habeas petition asks that the court, among other things, (1) appoint counsel for Hamdi; (2) order respondents to cease interrogating him; (3) declare that he is being held in violation of the Fifth and Fourteenth Amendments; (4) "[t]o the extent Respondents contest any material factual allegations in this Petition, schedule an evidentiary hearing, at which Petitioners may adduce proof in support of their allegations"; and (5) order that Hamdi be released from his "unlawful custody." . . .

*    *    *

On remand, the Government filed a response and a motion to dismiss the petition. It attached to its response a declaration from one Michael Mobbs (hereinafter "Mobbs Declaration"), who identified himself as Special Advisor to the Under Secretary of Defense for Policy. Mobbs indicated that in this position, he has been "substantially involved with matters related to the detention of enemy combatants in the current war against the al Qaeda terrorists and those who support and harbor them (including the Taliban)." He expressed his "familiar[ity]" with Department of Defense and United States military policies and procedures applicable to the detention, control, and transfer of al Qaeda and Taliban personnel, and declared that "[b]ased upon my review of relevant records and reports, I am also familiar with the facts and circumstances related to the capture of . . . Hamdi and his detention by U. S. military forces."

Mobbs then set forth what remains the sole evidentiary support that the Government has provided to the courts for Hamdi's detention. . . . According to the declaration, a series of “U. S. military screening team[s]” determined that Hamdi met “the criteria for enemy combatants,” and “a subsequent interview of Hamdi has confirmed that he surrendered and gave his firearm to Northern Alliance forces, which supports his classification as an enemy combatant.”

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II

The threshold question before us is whether the Executive has the authority to detain citizens who qualify as "enemy combatants." There is some debate as to the proper scope of this term, and the Government has never provided any court with the full criteria that it uses in classifying individuals as such. It has made clear, however, that, for purposes of this case, the "enemy combatant" that it is seeking to detain is an individual who, it alleges, was "part of or supporting forces hostile to the United States or coalition partners" in Afghanistan and who "engaged in an armed conflict against the United States" there. We therefore answer only the narrow question before us: whether the detention of citizens falling within that definition is authorized.

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. . .[Hamdi] posits that his detention is forbidden by 18 U. S. C. § 4001(a). Section 4001(a) states that "[n]o citizen shall be imprisoned or otherwise detained by the United States except pursuant to an Act of Congress." Congress passed § 4001(a) in 1971 as part of a bill to repeal the Emergency Detention Act of 1950, which provided procedures for executive detention, during times of emergency, of individuals deemed likely to engage in espionage or sabotage. Congress was particularly concerned about the possibility that the Act could be used to reprise the Japanese internment camps of World War II. ("The concentration camp implications of the legislation render it abhorrent"). The Government . . . maintains that § 4001(a) is satisfied, because Hamdi is being detained "pursuant to an Act of Congress"–the AUMF. . . . [B]ecause we conclude that the Government's second assertion is correct, we do not address the first. . . .[F]or the reasons that follow, we conclude that the AUMF is explicit congressional authorization for the detention of individuals in the narrow category we describe (assuming, without deciding, that such authorization is required), and that the AUMF satisfied § 4001(a)'s requirement that a detention be "pursuant to an Act of Congress" (assuming, without deciding, that § 4001(a) applies to military detentions).

The AUMF authorizes the President to use "all necessary and appropriate force" against "nations, organizations, or persons" associated with the September 11, 2001, terrorist attacks. There can be no doubt that individuals who fought against the United States in Afghanistan as part of the Taliban, an organization known to have supported the al Qaeda terrorist network responsible for those attacks, are individuals Congress sought to target in passing the AUMF. We conclude that detention of individuals falling into the limited category we are considering, for the duration of the particular conflict in which they were captured, is so fundamental and accepted an incident to war as to be an exercise of the "necessary and appropriate force" Congress has authorized the President to use.

The capture and detention of lawful combatants and the capture, detention, and trial of unlawful combatants, by "universal agreement and practice," are "important incident[s] of war." Ex parte Quirin.  The purpose of detention is to prevent captured individuals from returning to the field of battle and taking up arms once again. . . .

There is no bar to this Nation's holding one of its own citizens as an enemy combatant. In Quirin, one of the detainees, Haupt, alleged that he was a naturalized United States citizen. We held that "[c]itizens who associate themselves with the military arm of the enemy government, and with its aid, guidance and direction enter this country bent on hostile acts, are enemy belligerents within the meaning of . . . the law of war." While Haupt was tried for violations of the law of war, nothing in Quirin suggests that his citizenship would have precluded his mere detention for the duration of the relevant hostilities. . . . Nor can we see any reason for drawing such a line here. A citizen, no less than an alien, can be "part of or supporting forces hostile to the United States or coalition partners" and "engaged in an armed conflict against the United States”; such a citizen, if released, would pose the same threat of returning to the front during the ongoing conflict.

In light of these principles, it is of no moment that the AUMF does not use specific language of detention. Because detention to prevent a combatant's return to the battlefield is a fundamental incident of waging war, in permitting the use of "necessary and appropriate force," Congress has clearly and unmistakably authorized detention in the narrow circumstances considered here.

Hamdi objects, nevertheless, that Congress has not authorized the indefinite detention to which he is now subject. The Government responds that "the detention of enemy combatants during World War II was just as 'indefinite' while that war was being fought." We take Hamdi's objection to be not to the lack of certainty regarding the date on which the conflict will end, but to the substantial prospect of perpetual detention. We recognize that the national security underpinnings of the "war on terror," although crucially important, are broad and malleable. As the Government concedes, "given its unconventional nature, the current conflict is unlikely to end with a formal cease-fire agreement." The prospect Hamdi raises is therefore not far-fetched. If the Government does not consider this unconventional war won for two generations, and if it maintains during that time that Hamdi might, if released, rejoin forces fighting against the United States, then the position it has taken throughout the litigation of this case suggests that Hamdi's detention could last for the rest of his life.

It is a clearly established principle of the law of war that detention may last no longer than active hostilities. . . .

Hamdi contends that the AUMF does not authorize indefinite or perpetual detention. Certainly, we agree that indefinite detention for the purpose of interrogation is not authorized. Further, we understand Congress' grant of authority for the use of "necessary and appropriate force" to include the authority to detain for the duration of the relevant conflict, and our understanding is based on longstanding law-of-war principles. If the practical circumstances of a given conflict are entirely unlike those of the conflicts that informed the development of the law of war, that understanding may unravel. But that is not the situation we face as of this date. Active combat operations against Taliban fighters apparently are ongoing in Afghanistan. . . . The United States may detain, for the duration of these hostilities, individuals legitimately determined to be Taliban combatants who “engaged in an armed conflict against the United States.” If the record establishes that United States troops are still involved in active combat in Afghanistan, those detentions are part of the exercise of “necessary and appropriate force,” and therefore are authorized by the AUMF.

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Quirin was a unanimous opinion. It . . . provid[es] us with the most apposite precedent that we have on the question of whether citizens may be detained in such circumstances. Brushing aside such precedent–particularly when doing so gives rise to a host of new questions never dealt with by this Court–is unjustified and unwise.

To the extent that Justice Scalia accepts the precedential value of Quirin, he argues that it cannot guide our inquiry here because "[i]n Quirin it was uncontested that the petitioners were members of enemy forces," while Hamdi challenges his classification as an enemy combatant.. But it is unclear why, in the paradigm outlined by Justice Scalia, such a concession should have any relevance. Justice Scalia envisions a system in which the only options are congressional suspension of the writ of habeas corpus or prosecution for treason or some other crime. He does not explain how his historical analysis supports the addition of a third option–detention under some other process after concession of enemy-combatant status–or why a concession should carry any different effect than proof of enemy-combatant status in a proceeding that comports with due process. To be clear, our opinion only finds legislative authority to detain under the AUMF once it is sufficiently clear that the individual is, in fact, an enemy combatant; whether that is established by concession or by some other process that verifies this fact with sufficient certainty seems beside the point.

*   *    *

. . . Because Justice Scalia finds the fact of battlefield capture irrelevant, his distinction based on the fact that the petitioner "conceded" enemy combatant status is beside the point. Justice Scalia can point to no case or other authority for the proposition that those captured on a foreign battlefield (whether detained there or in U.S. territory) cannot be detained outside the criminal process.

Moreover, Justice Scalia presumably would come to a different result if Hamdi had been kept in Afghanistan or even Guantanamo Bay. This creates a perverse incentive. Military authorities faced with the stark choice of submitting to the full-blown criminal process or releasing a suspected enemy combatant captured on the battlefield will simply keep citizen-detainees abroad. Indeed, the Government transferred Hamdi from Guantanamo Bay to the United States naval brig only after it learned that he might be an American citizen. It is not at all clear why that should make a determinative constitutional difference.

III

Even in cases in which the detention of enemy combatants is legally authorized, there remains the question of what process is constitutionally due to a citizen who disputes his enemy-combatant status. Hamdi argues that he is owed a meaningful and timely hearing and that "extra-judicial detention [that] begins and ends with the submission of an affidavit based on third-hand hearsay" does not comport with the Fifth and Fourteenth Amendments. The Government counters that any more process than was provided below would be both unworkable and "constitutionally intolerable." Our resolution of this dispute requires a careful examination both of the writ of habeas corpus, which Hamdi now seeks to employ as a mechanism of judicial review, and of the Due Process Clause, which informs the procedural contours of that mechanism in this instance.

A.

Though they reach radically different conclusions on the process that ought to attend the present proceeding, the parties begin on common ground. All agree that, absent suspension, the writ of habeas corpus remains available to every individual detained within the United States. U. S. Const., Art. I, §9, cl. 2 ("The Privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it"). Only in the rarest of circumstances has Congress seen fit to suspend the writ. At all other times, it has remained a critical check on the Executive, ensuring that it does not detain individuals except in accordance with law. All agree suspension of the writ has not occurred here. Thus, it is undisputed that Hamdi was properly before an Article III court to challenge his detention under 28 U. S. C. § 2241. Further, all agree that § 2241 and its companion provisions provide at least a skeletal outline of the procedures to be afforded a petitioner in federal habeas review. Most notably, § 2243 provides that "the person detained may, under oath, deny any of the facts set forth in the return or allege any other material facts," and § 2246 allows the taking of evidence in habeas proceedings by deposition, affidavit, or interrogatories.

The simple outline of § 2241 makes clear both that Congress envisioned that habeas petitioners would have some opportunity to present and rebut facts and that courts in cases like this retain some ability to vary the ways in which they do so as mandated by due process. The Government recognizes the basic procedural protections required by the habeas statute, but asks us to hold that, given both the flexibility of the habeas mechanism and the circumstances presented in this case, the presentation of the Mobbs Declaration to the habeas court completed the required factual development. It suggests two separate reasons for its position that no further process is due.

B.

First, the Government urges the adoption of the Fourth Circuit's holding below–that because it is "undisputed" that Hamdi's seizure took place in a combat zone, the habeas determination can be made purely as a matter of law, with no further hearing or factfinding necessary. This argument is easily rejected. . . . [T]he circumstances surrounding Hamdi's seizure cannot in any way be characterized as "undisputed," as "those circumstances are neither conceded in fact, nor susceptible to concession in law, because Hamdi has not been permitted to speak for himself or even through counsel as to those circumstances." Further, the "facts" that constitute the alleged concession are insufficient to support Hamdi's detention. Under the definition of enemy combatant that we accept today as falling within the scope of Congress' authorization, Hamdi would need to be "part of or supporting forces hostile to the United States or coalition partners" and "engaged in an armed conflict against the United States" to justify his detention in the United States for the duration of the relevant conflict. The habeas petition states only that "[w]hen seized by the United States Government, Mr. Hamdi resided in Afghanistan." An assertion that one resided in a country in which combat operations are taking place is not a concession that one was "captured in a zone of active combat operations in a foreign theater of war," and certainly is not a concession that one was "part of or supporting forces hostile to the United States or coalition partners" and "engaged in an armed conflict against the United States." Accordingly, we reject any argument that Hamdi has made concessions that eliminate any right to further process.

C.

The Government's second argument requires closer consideration. This is the argument that further factual exploration is unwarranted and inappropriate in light of the extraordinary constitutional interests at stake. Under the Government's most extreme rendition of this argument, "[r]espect for separation of powers and the limited institutional capabilities of courts in matters of military decision-making in connection with an ongoing conflict" ought to eliminate entirely any individual process, restricting the courts to investigating only whether legal authorization exists for the broader detention scheme. At most, the Government argues, courts should review its determination that a citizen is an enemy combatant under a very deferential "some evidence" standard. . . . Under this review, a court would assume the accuracy of the Government's articulated basis for Hamdi's detention, as set forth in the Mobbs Declaration, and assess only whether that articulated basis was a legitimate one. . . .

In response, Hamdi emphasizes that this Court consistently has recognized that an individual challenging his detention may not be held at the will of the Executive without recourse to some proceeding before a neutral tribunal to determine whether the Executive's asserted justifications for that detention have basis in fact and warrant in law. He argues that the Fourth Circuit inappropriately "ceded power to the Executive during wartime to define the conduct for which a citizen may be detained, judge whether that citizen has engaged in the proscribed conduct, and imprison that citizen indefinitely," and that due process demands that he receive a hearing in which he may challenge the Mobbs Declaration and adduce his own counter evidence. . . .

Both of these positions highlight legitimate concerns. And both emphasize the tension that often exists between the autonomy that the Government asserts is necessary in order to pursue effectively a particular goal and the process that a citizen contends he is due before he is deprived of a constitutional right. The ordinary mechanism that we use for balancing such serious competing interests, and for determining the procedures that are necessary to ensure that a citizen is not "deprived of life, liberty, or property, without due process of law," U. S. Const., Amdt. 5, is the test that we articulated in Mathews v. Eldridge, 424 U. S. 319 (1976). Mathews dictates that the process due in any given instance is determined by weighing "the private interest that will be affected by the official action" against the Government's asserted interest, "including the function involved" and the burdens the Government would face in providing greater process. The Mathews calculus then contemplates a judicious balancing of these concerns, through an analysis of "the risk of an erroneous deprivation" of the private interest if the process were reduced and the "probable value, if any, of additional or substitute safeguards." We take each of these steps in turn.

1.

It is beyond question that substantial interests lie on both sides of the scale in this case. Hamdi's "private interest . . . affected by the official action," is the most elemental of liberty interests–the interest in being free from physical detention by one's own government. "In our society liberty is the norm," and detention without trial "is the carefully limited exception." "We have always been careful not to 'minimize the importance and fundamental nature' of the individual's right to liberty," and we will not do so today.

Nor is the weight on this side of the Mathews scale offset by the circumstances of war or the accusation of treasonous behavior, for "[i]t is clear that commitment for any purpose constitutes a significant deprivation of liberty that requires due process protection," and at this stage in the Mathews calculus, we consider the interest of the erroneously detained individual. Indeed, as amicus briefs from media and relief organizations emphasize, the risk of erroneous deprivation of a citizen's liberty in the absence of sufficient process here is very real. Moreover, as critical as the Government's interest may be in detaining those who actually pose an immediate threat to the national security of the United States during ongoing international conflict, history and common sense teach us that an unchecked system of detention carries the potential to become a means for oppression and abuse of others who do not present that sort of threat. . . . Because we live in a society in which “[m]ere public intolerance or animosity cannot constitutionally justify the deprivation of a person’s physical liberty,” our starting point for the Mathews analysis is unaltered by the allegations surrounding the particular detainee or the organizations with which he is alleged to have associated. We reaffirm today the fundamental nature of a citizen’s right to be free from involuntary confinement by his own government without due process of law, and we weigh the opposing governmental interests against the curtailment of liberty that such confinement entails.

2.

On the other side of the scale are the weighty and sensitive governmental interests in ensuring that those who have in fact fought with the enemy during a war do not return to battle against the United States. As discussed above, the law of war and the realities of combat may render such detentions both necessary and appropriate, and our due process analysis need not blink at those realities. Without doubt, our Constitution recognizes that core strategic matters of war-making belong in the hands of those who are best positioned and most politically accountable for making them.

The Government also argues at some length that its interests in reducing the process available to alleged enemy combatants are heightened by the practical difficulties that would accompany a system of trial-like process. In its view, military officers who are engaged in the serious work of waging battle would be unnecessarily and dangerously distracted by litigation half a world away, and discovery into military operations would both intrude on the sensitive secrets of national defense and result in a futile search for evidence buried under the rubble of war. . . .

3.

Striking the proper constitutional balance here is of great importance to the Nation during this period of ongoing combat. But it is equally vital that our calculus not give short shrift to the values that this country holds dear or to the privilege that is American citizenship. It is during our most challenging and uncertain moments that our Nation's commitment to due process is most severely tested; and it is in those times that we must preserve our commitment at home to the principles for which we fight abroad. See Kennedy v. Mendoza-Martinez, 372 U. S. 144, 164-165 (1963) ("The imperative necessity for safeguarding these rights to procedural due process under the gravest of emergencies has existed throughout our constitutional history, for it is then, under the pressing exigencies of crisis, that there is the greatest temptation to dispense with guarantees which, it is feared, will inhibit government action"); see also United States v. Robel, 389 U. S. 258, 264 (1967) ("It would indeed be ironic if, in the name of national defense, we would sanction the subversion of one of those liberties . . . which makes the defense of the Nation worthwhile").

With due recognition of these competing concerns, we believe that neither the process proposed by the Government nor the process apparently envisioned by the District Court below strikes the proper constitutional balance when a United States citizen is detained in the United States as an enemy combatant. That is, "the risk of erroneous deprivation" of a detainee's liberty interest is unacceptably high under the Government's proposed rule, while some of the "additional or substitute procedural safeguards" suggested by the District Court are unwarranted in light of their limited "probable value" and the burdens they may impose on the military in such cases.

We therefore hold that a citizen-detainee seeking to challenge his classification as an enemy combatant must receive notice of the factual basis for his classification, and a fair opportunity to rebut the Government's factual assertions before a neutral decisionmaker. . . . These essential constitutional promises may not be eroded.

At the same time, the exigencies of the circumstances may demand that, aside from these core elements, enemy combatant proceedings may be tailored to alleviate their uncommon potential to burden the Executive at a time of ongoing military conflict. Hearsay, for example, may need to be accepted as the most reliable available evidence from the Government in such a proceeding. Likewise, the Constitution would not be offended by a presumption in favor of the Government's evidence, so long as that presumption remained a rebuttable one and fair opportunity for rebuttal were provided. Thus, once the Government puts forth credible evidence that the habeas petitioner meets the enemy-combatant criteria, the onus could shift to the petitioner to rebut that evidence with more persuasive evidence that he falls outside the criteria. A burden-shifting scheme of this sort would meet the goal of ensuring that the errant tourist, embedded journalist, or local aid worker has a chance to prove military error while giving due regard to the Executive once it has put forth meaningful support for its conclusion that the detainee is in fact an enemy combatant. In the words of Mathews, process of this sort would sufficiently address the "risk of erroneous deprivation" of a detainee's liberty interest while eliminating certain procedures that have questionable additional value in light of the burden on the Government.

We think it unlikely that this basic process will have the dire impact on the central functions of war-making that the Government forecasts. . . .While we accord the greatest respect and consideration to the judgments of military authorities in matters relating to the actual prosecution of a war, and recognize that the scope of that discretion necessarily is wide, it does not infringe on the core role of the military for the courts to exercise their own time-honored and constitutionally mandated roles of reviewing and resolving claims like those presented here. . . .

In sum, while the full protections that accompany challenges to detentions in other settings may prove unworkable and inappropriate in the enemy-combatant setting, the threats to military operations posed by a basic system of independent review are not so weighty as to trump a citizen's core rights to challenge meaningfully the Government's case and to be heard by an impartial adjudicator.

D.

In so holding, we necessarily reject the Government's assertion that separation of powers principles mandate a heavily circumscribed role for the courts in such circumstances. Indeed, the position that the courts must forgo any examination of the individual case and focus exclusively on the legality of the broader detention scheme cannot be mandated by any reasonable view of separation of powers, as this approach serves only to condense power into a single branch of government. We have long since made clear that a state of war is not a blank check for the President when it comes to the rights of the Nation's citizens. Whatever power the United States Constitution envisions for the Executive in its exchanges with other nations or with enemy organizations in times of conflict, it most assuredly envisions a role for all three branches when individual liberties are at stake. Likewise, we have made clear that, unless Congress acts to suspend it, the Great Writ of habeas corpus allows the Judicial Branch to play a necessary role in maintaining this delicate balance of governance, serving as an important judicial check on the Executive's discretion in the realm of detentions. See

INS v. St. Cyr, ("At its historical core, the writ of habeas corpus has served as a means of reviewing the legality of Executive detention, and it is in that context that its protections have been strongest"). Thus, while we do not question that our due process assessment must pay keen attention to the particular burdens faced by the Executive in the context of military action, it would turn our system of checks and balances on its head to suggest that a citizen could not make his way to court with a challenge to the factual basis for his detention by his government, simply because the Executive opposes making available such a challenge. Absent suspension of the writ by Congress, a citizen detained as an enemy combatant is entitled to this process.

Because we conclude that due process demands some system for a citizen detainee to refute his classification, the proposed "some evidence" standard is inadequate. Any process in which the Executive's factual assertions go wholly unchallenged or are simply presumed correct without any opportunity for the alleged combatant to demonstrate otherwise falls constitutionally short. As the Government itself has recognized, we have utilized the "some evidence" standard in the past as a standard of review, not as a standard of proof. That is, it primarily has been employed by courts in examining an administrative record developed after an adversarial proceeding–one with process at least of the sort that we today hold is constitutionally mandated in the citizen enemy-combatant setting. This standard therefore is ill suited to the situation in which a habeas petitioner has received no prior proceedings before any tribunal and had no prior opportunity to rebut the Executive's factual assertions before a neutral decisionmaker.

Today we are faced only with such a case. Aside from unspecified "screening" processes, and military interrogations in which the Government suggests Hamdi could have contested his classification, Hamdi has received no process. An interrogation by one's captor, however effective an intelligence-gathering tool, hardly constitutes a constitutionally adequate factfinding before a neutral decisionmaker. . . . Plainly, the "process" Hamdi has received is not that to which he is entitled under the Due Process Clause.

There remains the possibility that the standards we have articulated could be met by an appropriately authorized and properly constituted military tribunal. Indeed, it is notable that military regulations already provide for such process in related instances, dictating that tribunals be made available to determine the status of enemy detainees who assert prisoner-of-war status under the Geneva Convention. . . . In the absence of such process, however, a court that receives a petition for a writ of habeas corpus from an alleged enemy combatant must itself ensure that the minimum requirements of due process are achieved. . . . We have no reason to doubt that courts faced with these sensitive matters will pay proper heed both to the matters of national security that might arise in an individual case and to the constitutional limitations safeguarding essential liberties that remain vibrant even in times of security concerns.

IV

Hamdi asks us to hold that the Fourth Circuit also erred by denying him immediate access to counsel upon his detention and by disposing of the case without permitting him to meet with an attorney. Since our grant of certiorari in this case, Hamdi has been appointed counsel, with whom he has met for consultation purposes on several occasions, and with whom he is now being granted unmonitored meetings. He unquestionably has the right to access to counsel in connection with the proceedings on remand. No further consideration of this issue is necessary at this stage of the case.

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The judgment of the United States Court of Appeals for the Fourth Circuit is vacated, and the case is remanded for further proceedings.

It is so ordered.

Justice Souter, joined by Justice Ginsburg, concurred in part, dissented in part, and joined in the judgment.  Souter’s opinion argued that the AUMF did not give the explicit authority to the president needed to override § 4001(a), and therefore Hamdi’s detention was without Congressional approval and thus unconstitutional. Nonetheless, because five justices (the plurality four plus Justice Thomas) agreed that Hamdi’s detention was lawful, these justices concurred in the plurality’s conclusion that Hamdi was entitled to a hearing to challenge his enemy combatant status.

Justice Thomas dissented, finding the detention to be authorized and Hamdi to have received all the process he was due.

Justice Scalia, joined by Justice Stevens, dissented.

These separate opinions are omitted.

Supreme Court opinion

Commentary

Certiori Grant