The defendant, Angel Antonio Mendez, appeals from a judgment entered on April 26, 2001, in the United States District Court for the District of Connecticut (Alfred V. Covello,
Chief
Judge), convicting him, after a guilty plea, of possession of a firearm as a previously convicted felon in violation of 18 U.S.C. §§ 922(g)(1) and 924(a)(2). In accordance with a conditional plea agreemеnt, Mendez reserved the right to appeal the district court’s denial of his motion to suppress evidence.
See United States v. Mendez,
BACKGROUND
On July 31, 2000, Officer Edward Foster of the Hartford Police Department was on duty, in uniform, driving a marked police cruiser. Foster saw the defendant Mendez on the grounds of a gasoline station and convenience store, leaning into an open passenger-side window of a parked Chevrolet automobilе. Foster also saw another man, whom he could not identify, in the driver’s seat of the automobile.
Foster recognized Mendez, whom he had encountered several times before on patrol. Foster knew that Mendez had been convicted for narcotics violations, was a gang member, and was wanted for auto theft.
As Foster drove closer, Mеndez stood up and looked directly at Foster. In a series of quick movements, Mendez leaned his torso into, and then removed it from, the passenger-side window of the automobile. Foster did not see Mendez’s hands, but he considered Mendez’s movements to be suspicious. Foster surmised that Mendez might have thrown something into the car. Mendez then walked into the convenience store.
Foster parked his cruiser, got out, and walked into the store. As Foster entered, Mendez, with his back to Foster, said, “What’s up, Foster?” without turning around. Foster advised Mendez of the auto-theft warrant. Based upon the authority of the warrant, Forster then arrested Mendez, handcuffed him, and escorted him out of the convenience store and into the back seat of the cruiser. 1
Without first advising Mendez of his rights under
Miranda v. Arizona,
As Foster placed Mendez in the cruiser, anothеr Hartford police officer, Heriberto Resto, arrived at the gasoline station. Foster told Resto that Mendez had ducked into the Chevrolet earlier, and that he thought that Mendez might have thrown something into it. Resto opened the unlocked glove compartment and found a loaded Heritage Stealth Shadow .40 caliber pistol, which is the basis оf Mendez’s conviction here on appeal. Resto gave the handgun to Foster. Foster secured it, returned to the automobile, and then searched the glove compartment himself. There he discovered a heat-sealed packet of heroin and the car’s bill of sale. The bill of sale indicated that Mendez was, in fact, the owner of the automobile. Because Mendez was under arrest, no one else was present to take custody of the automobile, and the automobile was parked in a highly trafficked location, Foster ordered that the automobile be towed and impounded.
*135 After a privately owned tow truck arrived, Foster filled out a “tow slip,” which was prоvided by the towing company. The tow slip, which was admitted into evidence at the suppression hearing, is entitled “POLICE IMPOUND.” It includes information about the vehicle, the reason the vehicle was towed, and various indicators of the vehicle’s status, such as whether it had a tape deck, a key, a battery, or tires. There is also a box on the form, marked “OTHER,” and next to it there is a blank line. Foster neither checked the “OTHER” box nor wrote anything on the adjacent line.
On September 20, 2000, a federal grand jury returned a one-count indictment charging Mendez with possession of a firearm as a previously convicted felon in violation of 18 U.S.C. §§ 922(g)(1) and 924(a)(2). On October 80, 2000, Mendez filed a motion in the district court to suppress the evidеnce obtained during the search of the automobile.
The district court held an evidentiary hearing in which Officers Foster and Resto testified to the circumstances of the search and to the “inventory search” policies of the Hartford Police Department. The district court concluded that the police lacked “probable cause” to search the glove compartment of Mendez’s automobile,
Mendez,
DISCUSSION
I. Standard of Review
We may not disturb the district court’s findings of fact unless they are clearly erroneous.
United States v. Eng,
II. Mendez’s Motion to Suppress Evidence
In the evidentiary hearing, the district court heard testimony from Officers Foster and Resto and reviewed documentary evidence submitted by both parties. In deciding to deny the suppression motion, the district court relied chiefly on what it termed the “uncontradicted testimony” of the two officers.
Mendez,
On appeal, Mendez argues that the evidence does not support the district court’s factual findings, and that in any event, those factual findings do not support the court’s legal conclusions. Specifically, Mendez asserts that the testimony of the two officers was ambiguous аnd contradictory, and that the tow slip was not properly completed because it did not list any valuables. Therefore, Mendez contends, the search was not an “inventory search” conducted “in good faith pursuant to ‘standardized criteria ... or established routine.’ ”
United States v. Thompson,
III. The District Court’s Factual Findings
Having carefully reviewed the record, we conclude that the district cоurt’s factual findings were not clearly erroneous. While there are some ambiguities in the testimony of the two officers, they are largely confined to secondary matters, and the district court therefore had ample discretion to disregard them. On appellate review, testimonial ambiguities are rarely sufficient reason to overturn a district сourt’s credibility determinations.
See John Doe No. 1, 272
F.3d at 124;
Champion,
IV. The Fourth Amendment Standards
The legal question presented on appeal is whether the evidence seized by Foster and Resto was properly admissible as evi *137 dence against Mendez under the inventory search exception to the Fourth Amendment’s warrant requirement, under the inevitable discovery exception to the Fourth Amendment’s exclusionary rule, or undеr some combination of the two.
A. Inventory Searches
When the police impound vehicles or detain suspects, they frequently perform inventory searches.
See, e.g., Illinois v. Lafayette,
Of course, “the right to [make an] inventory ... does not carry in its wake unlimited discretion.”
United States v. Griffiths,
A valid inventory search routine may allow the searching officers “sufficient latitude to determine whether a particular container should or should nоt be opened,”
Wells,
B. Inevitable Discovery
Under the inevitable discovery doctrine, “evidence that was illegally obtained will not be suppressed ‘if the government can prove that the evidence would have been obtained inevitably’ even if there had been no statutory or constitutional violation.”
United States v. Roberts,
V. The District Court’s Legal Conclusions
The district court apparently concluded that the discovery of the evidence was prоper under both the inventory search and the inevitable discovery doctrines. Under the heading “Conclusions of Law,” and the subheading, “The Inevitable Discovery Doctrine,” the district court stated:
Here, the government has met the burden of showing that the handgun and heroin would inevitably have been discovered through an inventory search of the Chevrolet, and that, at a minimum, the Hartford police department followed an established routine in conducting the search, notwithstanding the fact that the policy was not in writing.
Mendez,
We think that the district court’s conclusion blurs somewhat the distinction between the two doctrines. It is true that the government has made both an inventory search and an inevitable discovery argument. The government first argues that when Officers Foster and Resto discovered the handgun in the glove compartment, they were conducting а valid inventory search of the car. In the alternative, the government argues that even if the initial search of the car was unlawful, the police would inevitably have found the evidence in the course of a subsequent, valid inventory search of the car.
A Inevitable Discovery
The district court agreed with the government’s inevitable discovery argument. So do we. The reсord amply supports the district court’s conclusion that the Hartford Police Department had a consistent, if unwritten, inventory search policy. After the tow truck arrived, in accordance with that policy, Foster made a proper inventory search during which he completed the tow slip. Had the two officers not found the evidence during thе earlier searches, they would inevitably *139 have found it in the course of a valid inventory search, which Foster would subsequently have made. Thus, the evidence was properly admitted under the inevitable discovery exception to the exclusionary rule.
B. Inventory Search
At times, the district court’s opinion also seems to suggest that the initial searches by Foster and Resto — i.e., the searches that actually yielded the gun, the heroin, and the bill of sale — were themselves valid “inventory searches” conducted “in good faith pursuant to ‘standardized criteria ... or established routine.’ ”
Thompson,
CONCLUSION
For the foregoing reasons, the judgment of the district court is affirmed.
Notes
. By the time Foster left the convenience store with Mendez, the other man who had been in the automobile was gone. An unidentified passerby told Foster that the other man had fled when Foster entered the store.
. The district court also speculated that Foster might have failed to check the box marked ''OTHER” on the tow slip as "the result of a simple oversight."
Mendez,
. Although inventory searches typically occur at a police station or an impoundment facility, rather than at the time of the arrest,
see, e.g., Lafayette,
