After his pretrial motion to suppress evidence was denied, Candelario Angulo-Lopez entered a conditional guilty plea to two counts of violation of 21 U.S.C. § 841(a)(1), possession of a controlled substance with intent to distribute. The district court accepted the plea and entered judgment against Angulo-Lopez. He appeals, asserting that the warrant authorizing the search of his residence was not based on probable cause. We affirm.
FACTS
On May 25, 1985, police officers in Salem, Oregon executed a search warrant for appellant’s residence at 4669 Führer Street in Salem. The officers seized substances that later proved to be heroin and cocaine.
The search warrant was based on an affidavit of a Special Agent of the Drug Enforcement Administration (DEA). He detailed in the thirteen-page affidavit a series of observations relayed to him by DEA and local police officers and by a number of confidential informants. The informants included two citizen-informants and two criminal informants. All four informants had provided the police officers with accurate information in the past regarding the possession or sale of narcotics.
The information in the affidavit from these informants, DEA agents, and Oregon *1396 police officers was the following: Bessie and Simon Lopez, the appellant’s sister and brother-in-law, admitted in late April and early May, 1985, to selling heroin. The appellant was seen at the Lopez residence during that period of time, and Simon Lopez had stated to one of the informants that the appellant was living at the Lopez residence. One criminal informant stated that Simon Lopez had advised him that Lopez could sell the informant heroin and in fact the informant had obtained some heroin from Lopez at a northeast Salem shopping center.
In late April and early May, 1985, police surveillance units observed three encounters between the appellant and unidentified individuals in shopping center parking lots. On each occasion items were exchanged or appeared to be exchanged between the appellant and the other person. During the same period, Bessie Lopez told the citizen-informants that her husband and the appellant were currently selling heroin. The citizen-informants also stated that the appellant was selling heroin out of his new residence at 4669 Führer Street. Police investigation of electric and telephone company records indicated that the occupant at 4669 Führer Street was the appellant.
STANDARD OF REVIEW
The standard of review for the issuance of a search warrant requires us to examine whether the magistrate had a substantial basis for concluding that the affidavit in support of the warrant established probable cause.
United States v. Seybold,
PROBABLE CAUSE
To determine whether information provided by informants establishes probable cause, a magistrate looks to the “totality of the circumstances.”
Illinois v. Gates,
The Supreme Court departed from the
Aguilar-Spinelli
test in
Illinois v. Gates,
substituting a more flexible “totality of the circumstances test.”
An informant’s veracity or trustworthiness may be established in a number of ways. If the informant has provided accurate information on past occasions, he may be presumed trustworthy on subsequent occasions.
United States v. Alexander,
Certain classes of informants are considered more reliable than others. For example, police officers may be presumed reliable.
See United States v. Ventresca,
Hearsay reported by informants is no bar to a finding of probable cause. When the circumstances suggest veracity, such as an admission against penal interest, a statement made to an informant may be considered reliable.
United States v. Wylie,
The “basis of knowledge” prong of the
Aguilar-Spinelli
test requires that the af-fiant set forth the underlying circumstances that led the informant to believe that criminal activity was occurring; a mere conclusory allegation that a suspect was engaging in criminal activity is insufficient.
Spinelli,
Illinois v. Gates
permits independent police corroboration of some of the details provided by the informant to increase confidence in either the reliability or basis of knowledge of the tipster.
Gates,
The veracity of the informants in this case is supported by the statements in the affidavit that each had previously supplied the police with accurate information about narcotics trafficking. In addition, police knew the identity of the citizen-informants, and the informants had no apparent motive to fabricate their stories. The statements by Bessie Lopez that her husband, her brother, and she, herself, were trafficking in controlled substances carried the indicia of reliability as statements against penal interest. One of the criminal informants further bolstered his credibility by cooperating with the police in the purchase of controlled substances from Simon Lopez. The other criminal informant’s statements about selling controlled substances for Simon Lopez were also declarations against penal interest. Bessie and Simon Lopez also made statements against penal interest to these informants.
The most incriminating information in the affidavit is Bessie Lopez’s statement in April, 1985, that the appellant, her brother, was currently selling heroin. Bessie also implicated her husband in the trafficking. Moreover, Bessie had admitted on a prior occasion that she herself dealt in controlled substances. The appellant does not argue that the police lacked probable cause to search Bessie and Simon Lopez’s residence but instead contends that the affidavit disclosed no reason to believe that the appellant was dealing in heroin or kept narcotics at his new residence. Bessie’s incriminating statement, however, is not without independent support in the affidavit. One informant stated that the appellant was selling controlled substances. The citizen-informants had told police that the appellant was distributing heroin from his new residence at 4669 Führer Street. 1
On April 30, 1985, police surveillance units observed the appellant leaving the Lopez residence, arriving at a shopping center, and making an exchange of items with an unidentified individual. The same conduct was repeated on May 7 and May 9, 1985. On May 9, Bessie Lopez was observed leaving her residence and driving to the appellant’s residence at 4669 Führer Street. Although a single act of exchanging packages or objects at a shopping center does not establish probable cause, a pattern of such behavior, viewed in conjunction with Bessie Lopez’s admissions and the other details of drug trafficking supplied by the four informants, does give rise to probable cause to believe that the appellant was engaged in a violation of 21 U.S.C. § 841(a)(1).
Cf. United States v. Seybold,
Appellant contends that even if the police had probable cause to believe that the appellant was somehow associated with Simon Lopez’s drug trafficking, probable cause attached only to the Lopez’s residence and not to 4669 Fuhrer Street. We find this argument meritless. Direct evidence that contraband or evidence is at a particular location is not essential to establish probable cause to search the location.
United States v. Jackson,
The appellant’s argument that probable cause was stale is likewise without merit. The affidavit indicated that appellant was engaged in narcotics trafficking in late April and early May, 1985. The warrant was issued on May 24, 1985 and executed the following day. A search warrant is not stale where “there is sufficient basis to believe, based on a continuing pattern or other good reasons, that the items to be seized are still on the premises.”
United States v. Gann,
CONCLUSION
Because the affidavit in support of the warrant established probable cause, the decision of the district court is AFFIRMED. 3
Notes
. Although the affidavit did not disclose the basis for the informants’ knowledge, it did provide a basis for believing that the information was reliable. One informant had sold controlled substances in the past for Simon Lopez. He or she not only was familiar with such substances but also was privy to Simon Lopez’s drug trafficking. The citizen-informants were taken into both Simon and Bessie Lopez’s confidence regarding their narcotics trafficking and had been present on several occasions when Simon had counted out sums of money greater than $5000. Thus the affidavit contained information supporting the inference that these three informants had a basis for their knowledge.
See Gates,
. In Seybold, the affidavit indicated that telephone numbers “linked” to the defendant were found in the personal address books of two alleged co-conspirators. The affidavit also described a number of instances in which address books and personal papers seized from defendants contained the telephone numbers of their co-'conspirators. Finally, the affidavit indicated that telephone records and police reports further substantiated the "links” to the defendant. Id. at 504. "Standing alone, these alleged connections ... might not have justified a search of [the defendant’s] residence_ Nevertheless, these connections provided useful information *1399 that the magistrate could permissibly have considered, along with the other matters in the affidavit....” Id.
. Although the issue was extensively briefed by the parties, we do not consider whether evidence seized during an unlawful search may nonetheless be introduced at trial,
United States v. Leon,
