The Baltimore Sun Co., a newspaper publisher, appeals the district court’s order denying its petition for a writ of mandamus ordering a magistrate to unseal a search warrant affidavit. The principal issue is whether either the first amendment or the common law confers a qualified right of access to inspect and copy affidavits supporting search warrants in the interval between execution of the warrants and indictment. 1 Subsidiary issues, raised by the government, are whether this appeal is moot and whether mandamus is an appropriate remedy. We hold that the appeal is not moot and that mandamus is appropriate. Although the press and public do not have a first amendment right of access, they have a qualified common law right of access. Because the district court did not recognize this right, we vacate its judgment, but remand is unnecessary.
I
On January 27, 1988, a magistrate issued three search warrants related to an FBI investigation of fraud and organized crime in the health insurance industry. The warrants were based on the affidavit of an FBI agent. Upon the request of the government, the magistrate sealed the papers. The warrants were executed and returned on January 28 and 29. On March 3, 1988, the magistrate unsealed the warrants and returns but left the supporting affidavit sealed.
The Sun sought without success to have the affidavit unsealed during March and April of 1988. On May 4, 1988, the Sun petitioned to intervene, seeking relief in the form of inspection and publication of the affidavit. The government filed two responses to the Sun’s motion — a four page document filed under seal and a two page redacted version which was delivered to the Sun.
On May 29, 1988, the magistrate denied the Sun’s motion to unseal. He found that the procedures for sealing public documents and closing court proceedings, set out by this court in
In re Knight Publishing Co.,
After the magistrate denied its motion, the Sun filed a petition for a writ of mandamus to compel the magistrate to unseal the affidavits. The district court reviewed the *63 unredacted version of the government's response to the Sun’s motion to intervene but refused to examine the affidavit itself. The court concluded that the magistrate did not abuse his discretion. It agreed that the public’s interest in effective criminal investigation outweighed the Sun’s interest in publication of the affidavit and that release of the affidavit could hamper the ongoing investigation.
While this appeal was pending, indictments arising out of the FBI’s investigation were returned on September 22, 1988. Three weeks later, on the government’s motion, the magistrate unsealed the affidavit.
II
We cannot accept the government’s contention that, because the affidavit has been released to the public, this appeal should be dismissed as moot. This case falls within the exception to the mootness rule which permits judicial review when the dispute is “capable of repetition, yet evading review.”
Southern Pac. Terminal Co. v. ICC,
The government concedes, and we agree, that there is a reasonable expectation that the Sun will be subject to another sealing order denying it access to an affidavit. We are convinced that this kind of secrecy order is usually too short in duration to be litigated fully. The affidavit was unsealed within eight months after the Sun filed its petition. In similar eases the Supreme Court has held that the exception to the mootness doctrine applies.
See Globe Newspaper Co. v. Superior Court,
III
The government also argues that the district court order should be affirmed because mandamus cannot be granted unless the petitioner shows he has “no other adequate means to attain the relief he desires.”
Kerr v. United States Disk Court,
The district court did not err by addressing the merits of the case. Mandamus, not appeal, “is the preferred method of review for orders restricting press activity related to criminal proceedings.”
Washington Post,
IV
The government asserts that an affidavit for a search warrant is not a judicial record; it is ancillary to the investigation of one suspected of crime and not to the criminal trial itself. Consequently, the government argues, there is no right of access to the affidavit by either press or public.
We reject the government’s argument. “[T]he distinction between trials and other official proceedings is not necessarily dispositive, or even important, in evaluating the First Amendment issues.”
Press-Enterprise I,
Recognizing that search warrant affidavits are judicial records, however, does not answer the question whether the press has a right of access secured by either the first amendment or the common law. The distinction between the rights afforded by the first amendment and those afforded by the common law is significant. A first amendment right of access can be denied only by proof of a “compelling governmental interest” and proof that the denial is “narrowly tailored to serve that interest.”
Globe Newspaper,
V
The test for determining whether a first amendment right of access is available is: 1) “whether the place and process have historically been open to the press and general public,” and 2) “whether public access plays a significant positive role in the functioning of the particular process in question.”
Press-Enterprise Co. v. Superior Court,
The Sun disclaims any right to examine a search warrant affidavit before the warrant is executed, but the need for sealing affidavits may remain after execution and in some instances even after indictment. For example, the affidavit may describe continuing investigations, disclose information gleaned from wiretaps that have not yet been terminated, or reveal the identity of informers whose lives would be endangered. Frequently—probably most frequently—the warrant papers including supporting affidavits are open for inspection by the press and public in the clerk’s office after the warrant has been executed. But this is not demanded by the first amendment. As we will discuss in Part VI infra, whether the papers are sealed when filed rests in the sound discretion of the judicial officer who issued the warrant.
The circuits are split on the press’s first amendment right of access to search warrant affidavits.
Compare Times Mirror Co. v. Copley Press, Inc.,
VI
The Supreme Court has recognized that the press and the public have a common law qualified right of access to judicial records.
Nixon,
Unlike the rule of secrecy that is imposed with clearly defined exceptions on matters occurring before a grand jury,
4
Rule 41(g) is silent about disclosure of search warrant materials. Consequently, in accordance with the principles explained in
Nixon,
VII
In
Press-Enterprise I,
Since the application and issuance of a warrant are necessarily closed to press and public, notice can be given by docketing the order sealing the documents. If someone desires to inspect the papers, an opportunity must be afforded to voice objections to the denial of access.
The judicial officer may deny access when sealing is “essential to pre
*66
serve higher values and is narrowly tailored to serve that interest.”
Press-Enterprise I,
Because the magistrate and the district court did not follow acceptable procedures, the judgment of the district court sustaining the magistrate’s sealing of the affidavit is vacated. Further proceedings in the district court are unnecessary because the affidavit has been unsealed.
Notes
.The Sun presents the following issues for review:
1. Whether after search and seizure warrants have been issued by a federal magistrate and executed upon by law enforcement officials, the press and public have a qualified First Amendment and common law right to inspect the affidavits supporting the warrant applications?
2. Whether a court denying the press and public access to search and seizure warrant applications must provide a reasoned opinion for the denial, including specific factual findings supporting the denial and the reasons for rejecting alternatives to sealing?
3.Whether a United States district court judge is obligated to inspect a search warrant affidavit before determining whether a federal magistrate abused his discretion by sealing and refusing to unseal the affidavit?
. Rule 41(g) provides:
The federal magistrate before whom the warrant is returned shall attach to the warrant a copy of the return, inventory and all other papers in connection therewith and shall file them with the clerk of the district court for the district in which the property was seized.
. For text of rule see n. 2 supra.
. See Fed.R.Crim.P. 6(e).
. Appellate review can be preserved by a stay of an order giving access to the papers.
See Times Mirror,
.The Sun has not raised any issue about the reasons for sealing.
