Defendant Pierre Mathurin appeals from a judgment entered in the United States District Court for the Southern District of New York following a jury trial before Loretta A. Preska, Judge, convicting him of conspiracy to distribute controlled substances, in violation of 21 U.S.C. § 846 (1994), and possession with intent to distribute controlled substances, in violatiоn of 21 U.S.C. §§ 812, 841 (1994), and sentencing him principally to 210 months’ imprisonment, to be followed by a three-year term of supervised release. On *69 appeal, Mathurin contends that the district court erred in failing to hold an evidentiary hearing to determine whether his postarrest statements were the result of a valid waiver of his constitutional rights. For the reasons below, we conclude that a hearing should have been held, and we remand for such a hearing.
Mathurin was arrested in Februаry 1996 and charged with trafficking in controlled substances that are available only by prescription. Prior to trial, he moved, inter alia, to suppress postarrest stаtements attributed to him. In support of the motion, he eventually submitted his affidavit stating, to the extent pertinent here, “I was never given my Miranda warnings.... I never voluntarily waived my right to counsel.” Ma-thurin requested an evidentiary hearing.
The district court denied the motion to suppress without conducting an evidentiary hearing. The court stated that “[a] hearing is not required if the defendant’s statements are general, eonclusory or based on conjecture” (Hearing Transcript, June 26, 1996, аt 24 (internal quotation marks omitted)), and that “[wjhere, as here, the motion papers fail to specifically ... raise any issue of fact that could lead to the suppression of evidence, it is within the Court’s discretion to deny the motion without holding a hearing” (id. at 24-25). The court concluded that Mathurin’s “statements merеly that I was never given my Miranda warnings, and I never voluntarily waived my right to counsel, are not sufficiently specific or detailed to require a hearing.” (Id. at 25). We disagree with this ruling.
The Fifth Amendment protects against compelled self-incrimination. It is well settled that before a suspect may properly be subjected to custodial interrogation, he must be informed that he has the right to remain silent, that any statement he makes may be used in evidence against him, and that he has the right to have counsel present.
See, e.g., Miranda v. Arizona,
A defendant’s assertion in haec verba that
“Miranda
warnings” werе not given to him is of course shorthand; but as a way of alleging that he was not informed of the right to remain silent, or the right to counsel, or that his statements could bе used against him, it is neither vague, nor obscure, nor unspecific. And although the assertion that warnings were not given is eonclusory, any statement that a speсific event did not occur will normally be eonclusory,
see generally Kamen v. AT & T Co.,
An assertion that
Miranda
warnings were not given, when the government asserts the contrary, thus creates a specific factual dispute. That dispute cannot properly be resolved without an evidentiary hearing. And if the government fails to prove that the warnings were given,
see, e.g., Colorado v. Connelly,
There are of course other grounds for suppression that depend not on the occurrence of discrete observable acts but on the characterization of a set of circumstances, such'as the existence of probable cause for arrest or the voluntariness of a statement, as to which а eonclusory statement is not sufficient to require a hearing. A bald assertion that a statement was involuntary, for example, could be based on any of a number of factual premises such as coercion, lack of
Miranda
warnings, or lack of competence. Without specification of the factual basis for such a characterization, the district court is not required to have a hearing. In denying a hearing in the present case, the district court cited several cases,
e.g., United States v.
*70
Pena,
In sum, although conclusory, Mathurin’s statement that he was never given Miranda warnings was sufficiently factual and specific to require an evidentiary hearing, and we remand for such a hearing. We note that there have been two trials in this matter, at which law enforcement agents have testified extensively with respect to the giving of such warnings; Mathurin did not testify at either trial. The parties are free to stipulate to the use or incorporation of the pertinent trial testimony to constitute or supplement the reсord of the required hearing. In the absence of stipulation, the usual rules governing the use of prior testimony would of course apply.
Following the evidentiary hearing, the district court should determine whether or not Miranda warnings were given. If the court determines that such warnings were given and that Mathurin voluntarily waived his Miranda rights, see,
e.g., Colorado v. Connelly,
The matter is remanded for further proceedings in accordance with the foregoing. The mandate shall issue forthwith.
