Plaintiff-appellee Leonel Buenrostro, portraying himself as a victim of mistaken identity and misplaced zeal, sued a number of police officers under 42 U.S.C. § 1983 (1988). 1 The defendants unsuccessfully attempted to pretermit the suit on qualified immunity grounds. The district court denied their motion for summary judgment. We affirm.
I
Consistent with the method of Fed. R.Civ.P. 56(c), we take the record in the light most hospitable to the party opposing summary judgment and indulge all reasonable inferences favorable to him.
See Garside v. Osco Drug, Inc.,
On March 29, 1988, the extradition squad raided Buenrostro’s home, hauled him out, and arrested him pursuant to a “wanted person” request (WPR) from the State of New York. The police admittedly acted in the absence of an arrest warrant, a search warrant, or any exigent circumstances sufficient to justify the intrusion.
As a result of this arrest, appellee was handcuffed, taken to police headquarters, and locked in a cell. Subsequently, a local magistrate determined that there was probable cause to detain him while extradition proceedings ran their course. Despite a number of red flags — e.g., Buenrostro’s claims that the probable-cause determination was based on false accusations mouthed by members of the extradition squad, his continuing protests of innocence, significant discrepancies between the description of the suspect mentioned in the WPR and Buenrostro’s physical characteristics, and available (but unused) fingerprint evidence — Buenrostro remained immured in what the district court termed “horrific conditions” for thirty-one days. Finally, a more thorough examination of New York’s extradition request was undertaken, and the Puerto Rican authorities admitted that they had arrested the wrong man. Buenrostro was released.
Not long thereafter, Buenrostro sued for damages. He alleged in his complaint that his constitutional rights had been infracted in various ways. He also asserted pendent claims. In due course, the appellants sought brevis disposition based on qualified immunity. When the district court denied their Rule 56 motion, Buenrostro v. Collazo, 777 F.Supp. 128 (D.P.R.1991), they filed this appeal.
II.
A.
Ordinarily, we would not entertain an immediate appeal from a denial of summary judgment.
See, e.g., Fisichelli v. City Known as the Town of Methuen,
In this case, there is no other basis for earlier-than-usual review. It follows inexorably that, for present purposes, we must focus exclusively upon the question of whether the defense of qualified immunity, as invoked by the appellants, shielded them from liability for money damages, and from the concomitant burden of a trial, arising out of the alleged constitutional deprivation.
See Roque-Rodriguez,
B.
Appealability aside, appellate review of district court orders granting or denying summary judgment works the same way in qualified immunity cases as in other cases.
See Morales v. Ramirez,
Ill
A.
Through the medium of qualified immunity, the law strives to balance its desire to compensate those whose rights are infringed by state actors with an equally compelling desire to shield public servants from undue interference with the performance of their duties and from threats of liability which, though unfounded, may nevertheless be unbearably disruptive.
See Harlow v. Fitzgerald,
In analyzing a qualified immunity defense, a court must ascertain whether the plaintiff has alleged, with the requisite particularity, that a state actor violated some right emanating from federal law.
3
See Siegert v. Gilley,
— U.S.-,-,
*43 B.
The protections of the Fourth Amendment are fundamental to the rights of all American citizens and apply unreservedly in Puerto Rico.
See Torres v. Puerto Rico,
Payton
sends the clearest signal for our purposes. There, the Supreme Court held that a non-consensual, non-exigent, war-rantless entry into a home to effectuate an arrest transgressed the Fourth Amendment, notwithstanding that probable cause sufficient to justify the same arrest in a more public arena may have existed.
Payton,
C.
Appellants attempt to salvage their qualified immunity defense by asserting various justifications for their actions. They claim, first and foremost, that they had probable cause to believe that Buenros-tro was a fugitive from justice and, hence, to arrest and detain him. That is not, however, the dispositive criterion. Probable cause, without more, cannot legitimate a warrantless entry into a suspect’s home.
See Olson,
Appellants’ remaining contentions can be grouped. They contend that the wanted person request was the functional equivalent of an arrest warrant. 4 But it seems obvious to us that, in the context of seizing an individual- within the confines of his own home, a wanted person request circulated by an out-of-state police department differs significantly from an arrest warrant issued by a neutral, detached magistrate within the jurisdiction where the dwelling is located.
Alternatively, appellants contend that they entered the house with Buenrostro’s consent — a datum which, if true, would obviate the need for a warrant. Buenrostro, however, vehemently denies that he consented to the intrusion. At the summary judgment stage, therefore, the district court could not resolve the issue against him.
See, e.g., Unwin v. Campbell,
What is more, the grouped contentions are both infected by an incurable strain of procedural default. In the court below, appellant described the qualified im
*44
munity issue as being “simply
whether the ;police officers, at the time they arrested the ■plaintiff, had probable cause to believe that plaintiff had violated the law.”
Memorandum in Support of Motion for Summary Judgment (Memorandum) at 18 (emphasis in original);
see also id.
at 16. They eschewed any reliance on the WPR as a valid proxy for a conventional arrest warrant. Their moving papers nowhere suggested, let alone documented, that Buen-rostro consented to the entry into his home. Thus, the “arrest warrant” and “consent” arguments are by the boards for purposes of this appeal.
See McCoy v. Massachusetts Inst. of Technology,
We will not paint the lily. 5 On this scumbled record, the district court acted with impeccable propriety in rejecting the qualified immunity defense and refusing to enter a summary judgment predicated thereon.
D.
Although our analysis to this point disposes of the appeal, we add an eschatocol of sorts. Much of the parties’ briefing and argumentation ventures beyond the easily visualized Fourth Amendment violation and discusses whether an additional constitutional deprivation resulted from the sheer length of Buenrostro’s imprisonment.
See Baker v. McCollan,
In the court below, appellants premised their qualified immunity defense strictly and solely on what they claimed was the officers’ objectively reasonable conduct in effectuating Buenrostro’s arrest.
7
See
Memorandum at 14-19. They cannot now switch horses and argue that they are entitled to qualified immunity on the alleged
Baker
violation. Qualified immunity is, after all, an affirmative defense, and the “right” to have it determined in an intermediate appeal can be waived if it is not properly asserted below.
See, e.g., Roque-Rodriguez,
*45
At any rate, the Supreme Court has made it crystal clear that principles of causation borrowed from tort law are relevant to civil rights actions brought under section 1983.
See, e.g., Malley v. Briggs,
IV
We need go no further. On this record, the appellants are not entitled to qualified immunity on the Fourth Amendment claim. 8
Affirmed.
Notes
. The defendants include Pablo Collazo Marre-ro, Angel Morales Gonez, Edwin Teruel, and Jose M. Collazo, members of the Puerto Rico Police Department’s Division of Special Arrests and Extraditions; Armando Tapia Suarez, the head of that Division; and Carlos Lopez Felici-ano, the Superintendent of Police. Although other defendants were also sued, these six officers are the sole appellants in this proceeding. For ease in reference, we disregard for the time being that Buenrostro’s conjugal partnership and family members are named plaintiffs and treat Buenrostro as if he alone was the plaintiff-appellee.
. We recognize that, in some relatively rare instances in which Rule 56 motions might technically be granted, the district courts occasionally exercise a negative discretion in order to permit a potentially deserving case to be more fully developed.
See, e.g., McLain v. Meier,
612 F.2d.349, 356 (8th Cir.1979);
McInnis v. Harley-Davidson Motor Co.,
. At the summary judgment stage, the allegation must, of course, be substantiated by competent evidence sufficient to create a genuine issue of material fact.
See Mesnick v. General Elec. Co.,
. If it were correct, this contention would likely carry the day.
See, e.g., Steagald v. United States,
. It should be noted that two of the appellants, Tapia Suarez and Lopez Feliciano, were supervisors, not directly involved in Buenrostro’s arrest. In moving for summary judgment, however, they did not suggest that their involvement should be judged by a different standard; instead, they were content to lump themselves with the members of the extradition squad. We have repeatedly held that, if a defendant wishes to be separated from the pack and treated independently from his codefendants regarding qualified immunity, it is necessary that he make the distinction and present an appropriate argument to that effect in the trial court.
See Brennan v. Hendrigan,
. The Baker Court wrote:
We may even assume, arguendo, that, depending on what procedures the State affords defendants following arrest and prior to actual trial, mere detention pursuant to a valid warrant but in the face of repeated protests of innocence will after the lapse of a certain amount of time deprive the accused of "liberty ... without due process of law.”
Baker,
.The district court, following appellants' lead, did not address the possibility of qualified immunity vis-a-vis the alleged
Baker
violation but merely rejected appellants’ effort to jettison that allegation for failure to state an actionable claim.
See Buenrostro,
. In this case, there seem to be additional facts, not yet fully developed and-or resolved, which could potentially inform the ultimate decision on qualified immunity. Hence, the defendants remain free to adduce additional proof at trial in an effort to demonstrate that they, or some among them, should be held harmless from damages by the doctrine of qualified immunity.
See, e.g., Vazquez Rios v. Hernandez Colon,
