Defendant Gustavo Mendez, convicted and sentenced for possession of methamphetamine with intent to distribute, in violation of 21 U.S.C. §§ 841(a)(1) and (b)(1)(B), appeals the denial of his motion to suppress evidence. We affirm. *
I.
On February 17, 1996, Colorado State Patrol Trooper Thomas Iovinella was driving in a marked patrol car on Highway 160, west of Del Norte, Colorado. At 2:20 p.m., Iovinella stopped a Chevrolet Malibu, driven by Mendez, for speeding. As Iovinella approached the driver’s side of the car, he noticed that a plastic “faceplate” on the dashboard appeared crooked and that the car’s radio was “crooked and just kind of laying in [the console].” R. Vol. 4, at 10. Iovinella explained to Mendez the reason for the stop, and informed Mendez he would issue a warning for speeding. Iovinella requested Mendez’s driver’s license, registration, and proof of insurance. Mendez produced a California driver’s license in his name, and an Arizona registration in another person’s name. Iovinella inquired regarding ownership of the vehicle, and Mendez responded that the car belonged to his sister’s husband.
Iovinella asked Mendez where he was headed, and Mendez replied that he was headed to Colorado Springs to visit his sister. Iovinella asked Mendez where his sister lived in Colorado Springs. Mendez said that he did not know the address, but knew how to get there. Iovinella then returned to his patrol car to conduct a computer check on Mendez’s license and registration, as well as on the vehicle plates. All the checks came back clear, with “no wants or warrants.” Id. at 11.
When Iovinella returned to Mendez’s car, he again pressed Mendez regarding whether he knew the location of his sister’s house. Iovinella also asked Mendez whether he was “carrying any drugs, large sums of money, weapons or explosives.” Id. at 12-13. When Mendez denied carrying any contraband, Iovinella asked for, and obtained, Mendez’s oral consent to search the car. Iovinella told Mendez that he appreciated his cooperation, and explained that he needed Mendez to sign a written consent form. Iovinella then returned to his patrol car, radioed for backup, and prepared the consent form.
Trooper Dingfelter, the backup, arrived eight to ten minutes later. Iovinella asked Mendez to step out of his ear and stand by Dingfelter. Iovinella then showed Mendez the consent form, and asked him to read and sign it. Mendez signed the form.
*1429 When Iovinella entered Mendez’s car to commence the search, he smelled marijuana. He found a jacket in the back seat and handed it to Dingfelter. While Iovinella continued searching the car, Dingfelter looked through the pockets of the jacket and discovered marijuana. Dingfelter arrested Mendez and placed him in the back of the patrol car. Dingfelter then assisted Iovinella in searching Mendez’s ear.
The officers noticed that some screws were missing from the car’s dashboard. The officers removed a few more screws and pulled off the dashboard’s faceplate. Dingfelter reached into the vehicle’s air vent, and pulled out two balls wrapped in black duet tape. He cut one open and discovered a substance later confirmed to be methamphetamine.
Mendez was indicted on March 4, 1996, in the District of Colorado, on one count of possession of methamphetamine with intent to distribute. He filed a motion to suppress evidence and statements on April 15, 1996. The district court denied the motion on May 20, 1996, finding that Mendez’s consent to search the vehicle was voluntary. Mendez entered a plea of guilty on July 5, 1996, conditioned on his right to appeal the denial of his motion to suppress. Mendez was sentenced to forty-six months’ imprisonment, four years’ supervised release, and a $50 special assessment. Following sentencing, this appeal ensued.
II.
On appeal, Mendez argues that Iovinella’s questioning regarding contraband and consent to search was “outside the scope of the original reason for the traffic stop, and was not based on a reasonable suspicion that appellant was involved in criminal activity.” Appellant’s Br. at 6. Mendez requests that we reverse the district court’s denial of his motion to suppress, and remand the case in order for the district court to make more specific findings regarding whether Iovinella had returned Mendez’s driver’s license and registration prior to requesting consent to search the vehicle. Mendez argues that if Iovinella asked for consent to search before returning the documentation, then the consent was obtained as the result of an illegal detention.
“When reviewing the denial of a motion to suppress evidence, we view the evidence in the light most favorable to the government and the district court’s findings, and we review the district court’s factual findings only for clear error.”
United States v. Anderson,
A routine traffic stop is a seizure under the Fourth Amendment.
United States v. Botero-Ospina,
An officer conducting a routine traffic stop may run computer checks on the driver’s license, the vehicle registration papers, and on whether the driver has any outstanding warrants or the vehicle has been reported stolen.
Id.; United States v. Elliott,
A. Consensual Encounter
In this case, Iovinella checked—and cleared—Mendez’s documentation, and issued Mendez a warning for speeding. Iovinella then proceeded to ask Mendez whether he was carrying contraband, and whether he would consent to a search of his vehicle. The district court found that these additional questions “would not be relevant to the reason for the stop.” R. Vol. 4 at 86. The government does not dispute this finding, but argues that the additional questions were justified by the consensual nature of the prolonged encounter. Specifically, the government contends that once Iovinella returned Mendez’s documentation and thanked him for his cooperation, “one would infer a closure to the detention.” Appellee’s Br. at 13.
While determining whether an officer and driver are engaged in a consensual encounter typically requires the court to focus on the totality of the circumstances in a particular case, this circuit has consistently applied at least one bright-line rule: an officer must return a driver’s documentation before the detention can end.
Anderson,
In its oral ruling denying Mendez’s motion to suppress, the district court stated:
There has been this question raised as to how [Iovinella] got the vehicle identification number [at the time he filled out the written consent form]. His response was that he obtained it from the dispatcher. There’s some question about that as to whether the officer still had the registration form at that time and had not returned it, as he testified, that is, returned it before he asked the question about contraband and asked for the oral consent to search. I don’t find that to be a significant issue in the case.
Id. at 84. The district court did not consider this a significant issue because it believed the rule requiring the return of documentation prior to additional questioning applied principally to cases where there is “an ambiguity with respect to the [oral] consent.” Id. at 87. Finding that there was no question Mendez understood the written consent form, and that there was a ten minute delay between the oral and written consents during which Mendez could have reconsidered, the district court concluded the consent was voluntary, and that a “substantially eontemporaneous[]” return of Mendez’s documentation was sufficient. Id. at 86-88.
Having reviewed the district court’s entire oral ruling, we agree with Mendez that the
*1431
district court did not make sufficient findings regarding whether Iovinella returned Mendez’s documentation before, or after, the additional questioning. Without knowing the point at which Iovinella returned Mendez’s documents, we cannot determine the earliest point at which the encounter
could
have become consensual.
See Elliott,
B. Reasonable and Articulable Suspicion 2
The government relies upon the following as providing Iovinella with reasonable and articulable suspicion: Mendez told Iovinella that the car, which was registered in Arizona, belonged to his sister’s husband, yet he was headed to visit his sister in Colorado Springs; Mendez did not know his sister’s address; there was no luggage in the back seat; and the dashboard’s faceplate “wasn’t quite straight and looked as if it had been repaired or replaced,” Appellee’s Br. at 16, and the radio was loose in the console. When evaluating these factors, we judge the officer’s conduct in light of common sense and ordinary human experience.
McRae,
Initially, we discount Iovinella’s reliance on the lack of luggage on the vehicle’s back seat. Although activities entirely consistent with innocent travel can, and frequently do, contribute to reasonable suspicion,
id.
at 9,
We hold, however, that the remaining factors provided Iovinella with reasonable suspicion permitting him to ask Mendez whether he was carrying contraband and whether he would consent to a search of his vehicle. First, contradictory or implausible travel plans can contribute to a reasonable suspicion of illegal activity.
McRae,
Second, Iovinella, a six-year veteran, observed a crooked dashboard faceplate and dismounted radio. These observations also could contribute to an experienced law enforcement officer’s reasonable suspicion of illegal activity. “[A]n experienced law enforcement officer would know that drug couriers do not often leave their contraband ‘strewn across the trunk or floor of a car,’ and that they frequently hide drugs ... inside the cavities in a car’s panels.”
United States v. Chaidez,
C. The Validity of Mendez’s Consent
Having concluded that Iovinella lawfully detained Mendez during the brief period in which he asked Mendez whether he was carrying contraband and whether he would consent to a search of the vehicle, the only remaining question is whether Mendez’s subsequent consent was voluntary. A person who is being detained may give a voluntary consent to search.
McRae,
III.
For the foregoing reasons, we AFFIRM the denial of Mendez’s motion to suppress.
Notes
After examining the briefs and appellate record, this panel has determined unanimously that oral argument would not materially assist the deter-ruination of this appeal. See Fed.R.App.P. 34(a); 10th Cir. R. 34.1.9. The case is therefore ordered submitted without oral argument.
. Investigator McGinniss, who also testified at the suppression hearing, confirmed that officers can, and sometimes do, obtain vehicle identification numbers from dispatch. R. Vol. 4, at 76-77. When asked by defense counsel how such information is normally obtained, however, McGinniss testified it is normally obtained from the registration or the car itself. Id. at 66.
. The district court did not rule upon the issue of reasonable and articulable suspicion. Yet, neither Mendez nor the government mentions this point, and each party argues the issue on appeal. “[B]ecause the proceedings below resulted in a record of amply sufficient detail and depth from which the determination may he made,” we resolve the issue.
United States v. McSwain,
. Of course, we might view a lack of luggage in a vehicle’s passenger compartment much differently if the driver claimed to he making a lengthy trip and the vehicle did not have a trunk.
. With respect to his travel plans, Mendez first told Iovinella that he did not know his sister's address, but knew how to get there. At some later point, Iovinella asked Mendez what part of town his sister lived in, and Mendez did not know. There is some dispute over whether the later question was asked before or after Iovinella cleared Mendez's documents and issued the citation. For purposes of determining reasonable suspicion, we have considered only Mendez’s initial statement that he did not know the address, but knew how to get there.
