Defendant-appellant Gerald Rowell appeals from a judgment of conviction, entered in the United States District Court for the Western District of New York *900 (David G. Larimer, Judge). Rowell pled guilty to one count of possessing marijuana with intent to distribute and two counts of distributing marijuana, all in violation of 21 U.S.C. § 841(a)(1) (1988). He asserts that the district court improperly denied his pretrial motion to suppress certain evidence obtained through electronic eavesdropping. That evidence was collected pursuant to a state-issued warrant which, according to Rowell, lacked any basis of probable cause.
On this appeal, Rowell argues that his conviction must be reversed since the district court erred in finding sufficient probable cause to support issuance of the eavesdropping warrant. For the reasons set forth below, we affirm the judgment of the district court.
BACKGROUND
In the Fall of 1986, state and federal law enforcement agents initiated an investigation of Rowell and several others in connection with alleged narcotics activity in Monroe County, New York. On January 12, 1987, the Monroe County district attorney applied to County Court Judge Egan for an eavesdropping warrant authorizing a wiretap on telephones at Rowell’s residence and at his business, The Smuggler’s Cove Bar and Grill (“The Smuggler’s Cove”).
The basis for the warrant consisted of affidavits of several law enforcement officials. The affidavit of Rochester Police Officer Earl J. Lergner contained information that Rowell had been convicted of possessing 350 pounds of marijuana in Florida in 1984. Rowell’s Florida conviction followed a “reverse buy” in which he purchased marijuana, for $105,000 in cash, from an undercover Palm Beach County police officer. During the transaction, Ro-well revealed to the officer that he could regularly distribute over 1,000 pounds of marijuana per week and suggested a long-term supplier relationship with the officer. In addition, the Lergner affidavit described pen register records of telephone calls made to and from Rowell’s residence and business telephones. The pen register records revealed that between September 1986 and December 1986, approximately 1,000 outgoing calls were made and 1,000 incoming calls were received on the telephone at Rowell’s residence. During the same period, over 2,200 outgoing calls and 200 incoming calls were registered on the telephone at The Smuggler’s Cove. In the opinion of Officer Lergner, an experienced drug enforcement agent, the high number of calls exceeded the normal volume for a private residence or small business and was, in fact, consistent with narcotics trafficking. Officer Lergner also observed that at least three calls had been placed in June 1986 from Rowell’s residence and business to one Jeffrey Weisberg who, within several months of the calls, was arrested after delivering one pound of highly pure cocaine. Also, at least two calls had been placed from The Smuggler’s Cove to Brazil, a frequent port of origin for narcotics shipments to the United States.
The affidavit of Monroe County Deputy Sheriff John Gagne disclosed that a named informant had observed Rowell sell large quantities of narcotics on several occasions in Monroe County. The Gagne affidavit further established that another named informant was present when Rowell had in his possession a large quantity of cocaine in the basement office of The Smuggler’s Cove.
The wiretaps authorized by Judge Egan’s warrant made clear that Rowell was involved in narcotics trafficking. As the wiretap evidence pointed to an interstate narcotics conspiracy, criminal proceedings were initiated in federal court. On May 26, 1988, a United States Grand Jury, sitting in the Western District of New York, returned an indictment against Rowell and several other individuals. The indictment charged the defendants with thirty-seven counts, twenty-eight of which named Rowell. The charges against Ro-well included: participating in a conspiracy to possess with intent to distribute and to distribute cocaine and marijuana; possessing with intent to distribute marijuana; distributing various quantities of marijuana; and intentionally using a telephone to facilitate a conspiracy to possess with intent to *901 distribute and to distribute cocaine and marijuana.
Rowell made a pre-trial motion to suppress the wiretap evidence on the ground, inter alia, that the eavesdropping warrant was not supported by sufficient probable cause. Specifically, the defendant argued that since the warrant was issued by a New York state court judge, the district court should apply the more stringent New York standard for probable cause, not the federal “totality of the circumstances” standard. The district court denied Ro-well’s motion, concluding that probable cause for the warrants existed under either federal law or New York State law.
Following the denial of his suppression motion, Rowell entered into a plea agreement with the government. Under the terms of the agreement, Rowell entered guilty pleas to one count of possessing marijuana with intent to distribute and two counts of distributing marijuana, in violation of 21 U.S.C. § 841(a)(1). The agreement stipulated that Rowell retained his right to appeal the denial of his motion to suppress the wiretap evidence pursuant to Fed.R.Crim.P. 11(a)(2). On September 26, 1989, the district court sentenced Rowell to 24-months imprisonment on each of the three counts to which he pled guilty. The district court ordered that the three sentences be served consecutively, for a total of 72-months imprisonment. In addition, the court imposed a term of supervised release to follow the period of incarceration, a $25,000 fine, and a $150 special assessment. This appeal followed.
DISCUSSION
I. The Applicable Standard
On appeal, as in the district court, Rowell contends that federal courts should apply state warrant requirements, if they are more stringent than applicable federal requirements, to state-issued warrants. Ro-well further argues that New York has rejected the federal standard for probable cause articulated in
Illinois v. Gates,
In
United States v. Pforzheimer,
This conclusion, which flows directly from our prior decisions, is supported by prior decisions of the Supreme Court.
See, e.g., Preston v. United States,
376 U.S.
*902
364, 366,
Rowell argues that policy considerations weigh in favor of applying more stringent state standards in federal criminal prosecutions. He cites dicta in
United States v. Sotomayor,
A state prosecutor whose case relies on evidence that may be inadmissible in a state court trial has no power or authority to effect a prosecution in federal court. The initiation of a federal prosecution depends entirely on the discretion of the federal prosecutor.... [and we] “should presume that the [federal] prosecution was pursued in good faith execution of the law.”
II. Application of the Standard
Under
Illinois v. Gates,
In the present case, there is substantial evidence supporting the district court’s determination that probable cause existed for authorization of the wiretap. The Lergner and Gagne affidavits contain information, including the pen register records and the informants’ statements, which amply support the conclusion that *903 Rowell was engaged in narcotics activity. Rowell’s prior narcotics conviction and his contacts with another individual involved in narcotics activity further support the probable cause determination. Considering the “totality of the circumstances,” the issuance of the wiretap warrant was certainly justified. Accordingly, the district court’s refusal to suppress the evidence obtained under that warrant will not be disturbed.
Rowell contends that, since the informants’ statements contained in the Gagne affidavit were obtained in 1985, they were too stale to support the January 12, 1987 wiretap warrant. “[T]he principal factors in assessing whether or not the supporting facts have become stale are the age of those facts and the nature of the conduct alleged to have violated the law.”
United States v. Martino,
Finally, we agree with the district court that probable cause for the wiretap warrant was sufficient under either the
Gates
standard or the
Aguilar-Spinelli
standard. The
Aguilar-Spinelli
test is a two-prong inquiry into “(i) the veracity or reliability of the source of the information, and (ii) the basis of the informant’s knowledge.”
Griminger,
In the present case, Rowell concedes that the allegations contained in the warrant application satisfy the basis of knowledge prong of the
Aguilar-Spinelli
test. He contends that the government failed to adequately establish the veracity or reliability of the two informants. However, sufficient indicia of veracity and reliability existed to sustain probable cause under the
Aguilar-Spinelli
test. The informants described in the Gagne affidavit were witnesses to Rowell’s involvement in narcotics activity. They were not professional informants whose reliability might be suspect. “[A] witness to a crime ‘need
not
be shown to have been previously reliable before the authorities may rely on his statements.’ ”
United States v. Gaviria,
CONCLUSION
We have examined each of Rowell’s remaining arguments and find them to be *904 without merit. In light of the foregoing, we affirm the judgment of the district court.
