OPINION OF THE COURT
This appeal from an order of the District Court denying a petition to expunge a long-standing criminal record presents a question of first impression in this Court pertaining to subject matter jurisdiction. The appellant, Dennis Dunegan, filed his petition in the United States District Court for the Western District of Pennsylvania on December 14, 2000, to expunge the record of criminal proceedings pertaining to him in that court in 1971-1972. The *478 District Court denied Dunegan’s petition on the merits, stating that Dunegan had failed to allege any extraordinary circumstances justifying expungement under the equitable powers of the court. 1 Dunegan appealed. We will vacate the order of the District Court and remand for dismissal for want of jurisdiction.
I.
On November 9, 1972, Dennis Dunegan, then a police officer, was indicted in the United States District Court for the Western District of Pennsylvania for allegedly violating a suspect’s civil rights. The charges arose out of an accidental shooting that took place on February 7, 1971. Dunegan was tried and acquitted by a criminal jury. Today, he is 56 years old, retired from the Penn Hills Police Department, and employed as an independent truck driver. Dunegan predicates his petition for relief on the inherent powers of the court. He cites no applicable federal statute providing for the expungement of criminal records in the federal judicial system. The inherent powers of the federal courts are limited and difficult to define with precision. Therefore, “they must be exercised with restraint and discretion.”
Roadway Express, Inc. v. Piper,
The second and most common use of the inherent powers encompasses those powers necessary for the courts to adjudicate cases in an orderly and efficacious manner. See id. at 562-63. The contempt power is “the most prominent” of these powers, and has been described as essential to the administration of justice and the effective functioning of the judiciary. Id. (citations omitted). Jurisdiction over expungement petitions is not embraced by this for m of the court’s inherent powers.
Finally, courts have the authority under then- inherent power to employ instruments and persons unconnected with the court, such as experts and auditors, to aid them in them decision making. See id. at 563. Clearly, this power does not provide courts with jurisdiction independently to consider petitions for expungement.
II.
Having ruled out the inherent powers of the court as a basis for jurisdiction over Dunegan’s petition, we now turn to the doctrine of “ancillary jurisdiction,” which has been held, under some circumstances, to supply jurisdiction over ex-pungement petitions.
See, e.g., United States v. Sumner,
In
Kokkonen v. Guardian Life Ins. Co.,
In analyzing the decisional law on the doctrine of ancillary jurisdiction in
Kokko-nen,
Justice Sealia, writing for a unanimous Court, concluded that federal courts have asserted ancillary jurisdiction for two separate, though sometimes related, purposes: “(1) to permit disposition by a single court of claims that are, in varying respects and degrees, factually interdependent; and (2) to enable a court to function successfully, that is, to manage its proceedings, vindicate its authority, and effectuate its decrees.”
Id.
at 380,
In
United States v. Noonan,
In
United States v. Sumner,
As in this case, Sumner did not seek expungement under any statute, Rule of Court or under the Constitution. He too filed a motion in the District Court under the case number assigned to his original offense. In a careful analysis of the law, the Court of Appeals noted that a district court has the “inherent jurisdiction” within the time allowed for appeal to modify its judgment for err or of fact or law or even to revoke a judgment. The court also looked at Fed. R. App. P.4(b) and observed that the expiration of the time to file an *480 appeal under that Rule is a jurisdictional limitation upon the power of the District Court after a judgment of conviction has been entered.” Id. at 1013. Concluding that ancillary jurisdiction of the court is limited to a determination of matters incidental to the exercise of its primary jurisdiction over a cause under review, it concluded that expungement of a criminal record “solely on equitable grounds, such as to reward a defendant’s rehabilitation and commendable post-conviction conduct, does not serve any of these goals.” Id. at 1014. In its view, a district court’s ancillary jurisdiction “is limited to expunging the record of an unlawful arrest or conviction, or to correcting a clerical error.” Id.
We need not consider at this time whether a record may be expunged on the basis of Constitutional or statutory infirmity in the underlying criminal proceedings or on the basis of an unlawful arrest or conviction. Dunegan has not raised any of these concerns; he has not alleged any unlawful arrest or other legal infirmity.
Thus, we hold that in the absence of any applicable statute enacted by Congress, or an allegation that the criminal proceedings were invalid or illegal, a District Court does not have the jurisdiction to expunge a criminal record, even when ending in an acquittal.
III.
Accordingly, we conclude that the District Court lacked subject matter jurisdiction to entertain the petition. The order of the District Court will be vacated and the case remanded to the District Court with direction to dismiss the petition for want of jurisdiction.
Notes
. Dunegan's petition was filed in the same court and under the same docket number as his original criminal prosecution in 1972.
