This appeal conveys two invitations. First, it invites us to exercise appellate jurisdiction in connection with rulings on motions invoking Fed.R.Crim.P. 35(b). 1 Second, it invites us to require district courts, in passing upon such motions, to hold evidentiary hearings on demand. We accept the first invitation, but decline .the second.
I. BACKGROUND
A jury found defendant-appellant Willie McAndrews, also known as Willie Wilson, guilty of violating 21 U.S.C. §§ 841(a)(1), 841(b)(1)(A), and 846. Using the 1989 edition of the federal sentencing guidelines, the district court sentenced appellant to 125 months in prison.
In the aftermath of his sentence, appellant cooperated with federal authorities. Consequently, the government filed a timely sentence reduction motion under Rule 35(b). Appellant requested an evidentiary hearing on the motion. Following a lengthy continuance designed to permit a better informed assessment of the fruits of appellant’s cooperation, the district court eschewed an evi-dentiary hearing and, acting on the parties’ written submissions, granted the government’s motion. Dissatisfied with the extent of the reduction — the -court sliced 29 months from the sentenced — McAndrews appeals. We affirm.
*276 II. APPELLATE JURISDICTION
We deal first with the jurisdictional quandary. It has two aspects. We treat them sequentially.
A. The Departure Analogy.
It is settled that a criminal defendant cannot ground an appeal on the sentencing court’s discretionary decision not to depart below the guideline sentencing range.
See, e.g., United States v. Amparo,
The general rule that departure decisions of the type discussed above.are nonappealable holds true in the special situation of downward departures for substantial assistance.
3
Thus, neither a district court’s refusal to depart downward to reward a defendant’s substantial assistance, nor the court’s refusal to grant as generous a departure as a cooperating defendant had hoped, will normally constitute an appealable event.
See United States v. Doe,
In this appeal, the government attempts to analogize such “substantial assistance” departures to sentence reductions under Rule 35(b) for jurisdictional purposes.
4
The analogy has a certain superficial attraction because both mechanisms operate to bring a defendant’s sentence below the guideline sentencing range and entail similar judicial inquiries,
compare, e.g., Mariano,
The right of appeal in criminal cases is purely a creature of statute, that is, a party “must come within the terms of [some] applicable statute” in order to appeal.
Abney v. United States,
Congress changed the calculus radically when it enacted 18 U.S.C. § 3742 as part of the Sentencing Reform Act of 1984, constituting it as the exclusive avenue through which a party can appeal a sentence in a criminal case. 5 The statute alters prior practice in two salient respects, narrowing the types of sentences that can be appealed while simultaneously augmenting the grounds for appealing the remaining types of sentences. See, e.g., S.Rep. No. 225, 98th Cong., 2d Sess. (1983), reprinted in 1984 U.S.C.C.A.N. 3182, 3338 (stating that “section 3742 creates for the first time a comprehensive system of review of sentences that permits the appellate process to focus attention on those sentences whose review is crucial to the functioning of the sentencing guidelines system, while also providing adequate means for correction of erroneous and clearly unreasonable sentences”).
In the post-guidelines era, then, only sentences that meet the criteria limned in section 3742 are amenable to appellate review. And because neither refusals to depart nor downward departures result in a sentence “greater than the sentence specified in the applicable guideline range,” 18 U.S.C. § 3742(a)(3), or otherwise trigger the prophylaxis of section 3742(a), a defendant ordinarily will not be able to appeal from such a decision,
see Pighetti,
Rule 35(b) is a horse of a different hue. By definition, a sentence must already have been imposed before Rule 35(b) can be invoked and a sentence reduction contemplated. It follows that the appealability of an order' resolving a Rule 35(b) motion is not controlled by 18 U.S.C. § 3742 because such an order is not, properly speaking, a sentence.
7
Rather, appealability in such circumstances, like appealability with respect to the disposition of virtually all other post-judgment motions, is governed by 28 U.S.C. § 1291. And an order resolving a Rule 35(b) motion satisfies the preconditions established by section 1291, for entry of the order leaves nothing farther to be done.
See United States v. Metropolitan Dist. Comm’n,
Cast in this mold, our analysis accords with the general principle, taken for granted in both our criminal arid civil jurisprudence, that rulings disposing of motions which seek to alter preexisting judgments are appealable.
See, e.g., United States v. Slade,
For the foregoing reasons, the government’s attempted analogy between downward departures for substantial assistance and sentence reductions is unpersuasive in connection with appellate jurisdiction. We conclude that, even in an era dominated by the sentencing guidelines, an order granting or denying a timely motion for a sentence reduction, unlike certain analogous departure decisions, remains appealable.
B. Lack of Adverseness.
Perhaps the better argument against appellate jurisdiction in the case of a granted Rule 35(b) motion is that the defendant,
qua
appellant," lacks “such a personal stake in the outcome of the controversy as to assure that concrete adverseness which sharpens the presentation of issues upon which the court so largely depends.”
Baker
v.
Carr,
The problem with such an argument is twofold. First, it is overly simplistic. The key to the appealability of a final order is injury, not prevailing party status. .
See Deposit Guaranty Nat’l Bk. v. Roper,
Second, this court has already repudiated the lack of adverseness argument in an almost identical context. In
Distasio,
we considered the ease of a criminal defendant who, after having been granted a reduction in sentence under an earlier version of Rule 35(b), sought to appeal the adequacy of the reduction.
See Distasio,
We hold, therefore, that we have jurisdiction to hear a timely appeal in which a prevailing defendant complains that the district court acted too grudgingly in dispensing relief under Rule 35(b). This case fits within that jurisdictional enclave.
III. THE MERITS
Having ascertained the existence of appellate jurisdiction, the merits of the appeal need not detain us. Appellant’s flagship contention is that the district court erred in denying his motion for an evidentiary hearing and, thus, robbed him of the opportunity to make a more formidable showing on the merits. We are not persuaded. 10
In this endeavor, appellant’s main focus is his insistence that “without conducting an evidentiary hearing, the district court cannot possibly be in a position to evaluate the full nature and extent of [a defendant’s] cooperation.” Appellant’s Brief .at 9. We flatly reject such a rigid formulation. A criminal defendant is not automatically entitled to an evidentiary hearing on a pretrial or posttrial motion.
See United States v. McGill,
We can envision no sound basis for exempting Rule 35(b) motions from the sweep of this generality. While gauging the extent and value of a defendant’s assistance to the authorities is a delicate, highly nuanced matter, we have consistently abjured mandatory evidentiary hearings in a wide variety of equally delicate, equally nuanced situations.
See, e.g., United States v. Garcia,
Once it is determined that Rule 35(b) motions, as a class, do not demand special swaddling, appellant’s assignment of error founders. We review the district court’s rulings granting or denying evidentiary hearings under an abuse-of-discretion rubric.
See Garcia,
McAndrews wholly failed to carry this heavy burden. The government made a detailed written proffer to the district court, spelling out the facts referable to its sentence reduction motion. ■ Appellant had a similar opportunity. Yet, he offered no specifics to contradict the prosecution’s proffer or to suggest material omissions.
12
Beneath the rhetoric, appellant’s filing evinced little more than the hope that, should a hearing eventuate, something helpful might emerge. But more is exigible. A district court need not grant an evidentiary hearing on a motion merely because a defendant’s hopes spring eternal or because a defendant wishes to mount a fishing expedition.
See, e.g., DeCologero,
The short of it is that a criminal defendant who seeks an evidentiary hearing on a motion must, at the very least, carry an entry-level burden by making “a sufficient threshold showing that material facts [are] in doubt or in dispute.”
Panitz,
IV. CONCLUSION
We need go no ’further. We hold that we have jurisdiction to consider appellant’s complaint anent the disposition of his Rule 35(b) motion. Having exercised this jurisdiction, however, we find no error in the district court’s order or in the procedure it employed.
Affirmed.
Notes
. The rule was rewritten as part of the Sentencing Reform Act, effective November 1, 1987, and was further amended in 1991. See Fed. R.Crim.P. 35 advisory committee's notes. In its current incarnation, the rule provides in pertinent part:
The court, on motion of the Government made within one year after the imposition of the sentence, may reduce a sentence to reflect a defendant's subsequent, substantial assistance in the investigation or prosecution of another person who has committed an' offense.... The court's authority to reduce a sentence under this subsection includes the authority to reduce such sentence to a level below that established by statute as a minimum sentence.
Fed.R.Crim.P. 35(b).
. An exception applies when the .sentencing court's ruling results from a mistake of law.
See, e.g., Amparo,
. Beyond inviting a comparison between the triggering mechanisms,
compare
U.S.S.G. § 5K1.1
with
U.S.S.G. § 5K2.0, it would be supererogatory for us to rehearse today the differences between "substantial assistance” and "mitigating circumstances” departures. At any rate, we have charted that terrain in other cases.
See, e.g., United States v. Mariano,
.Although this analogy has never before been carefully probed by a federal appellate court, it appears to have been implicitly approved in a dictum contained in
United States v. Yesil,
.The statute provides in pertinent part:
A defendant may file a notice of appeal in the district court for review of an otherwise final sentence if the sentence—
(1) was imposed in violation of law;
(2) was imposed as a result of an incorrect application of the sentencing guidelines; or
(3) is greater than the sentence specified in the applicable guideline range ... or
(4) was imposed for an offense for which there is no sentencing guideline and is plainly unreasonable.
18 U.S.C. § 3742(a) (1988). The terms under which the government may appeal a sentence are substantially similar. See id, at § 3742(b).
. This statement is, of course, subject to the exception previously mentioned. See supra note 2. We see no reason why the same exception should not apply if, and to the extent that, a mistake of law materially and demonstrably influences the extent of a departure decision.
. On this point, we differ from the position adumbrated, without analysis, in
United States v. Yesil,
. We note that, if the law were to the contrary in the Rule 35(b) environment, a district court could invariably defeat appellate oversight of an otherwise reviewable denial of a. Rule 35(b) motion by, for example, lopping one day off a defendant’s sentence.
. The current version of Rule 35(b), applicable to crimes committed on or after November 1, 1987, differs in at least three ways from former Rule 35(b). First, the text of the new rule limits the ground for relief to "substantial assistance in the investigation or prosecution of another person who has committed an offense.” Second, the new rule adds a "government motion" requirement. Finally, in the latest version of Rule 35(b), the period within which a Rule 35(b) motion may be filed has been lengthened somewhat. Nonetheless, the essence of a Rule 35(b) determination- — the district court's discretionary decision whether to reduce a defendant's sentence, and if so, to what extent — remains intact.
. Appellant hints, but offers no developed argumentation to show, that the sentence reduction granted by the district court is, in fact, too niggardly. That approach is, therefore, foreclosed.
See United States v. Zannino,
. Appellant cites
United States v. Yesil,
. At one point, appellant asserted that, in addition to the efforts that the government cata-logued, he also "provided the impetus for two other individuals, Charlie Luna and Pedro Gomez, to commence cooperation,” and that new cases were developed because of this information. But scrutiny of the government’s proffer reveals complete agreement on this point — and, thus, no need for an evidentiary hearing. The fact that the government did not identify Luna and Gomez by name, but referred to them merely , as "two other suspects,” is a distinction bereft of any meaningful difference.
