Defendant-Appellant Dallas Williams appeals from the denial of his motion to suppress pursuant to a conditional plea. He was convicted of possession with intent to distribute approximately 230 pounds of marijuana, and sentenced to thirty-seven months in prison and a three-year term of supervised release. We have jurisdiction under 28 U.S.C. § 1291 and we affirm.
Background
On April 22, 2000, at approximately 2:15 p.m., Kansas Highway Patrol Trooper Mitch Nollette stopped Mr. Williams for going seventy-six miles per hour in a seventy mile per hour speed zone. The officer, traveling westbound on Interstate 70, had used radar to clock Mr. Williams, who *1265 was traveling eastbound in a Lincoln Town Car. The officer approached the car and spoke with Mr. Williams, who was the sole occupant of the vehicle. The officer explained to Mr. Williams that he had stopped him for speeding and asked to see his license. Mr. Williams produced an Illinois driver’s license that showed Mr. Williams to be a resident of Chicago. The officer noticed at the outset of the stop that Mr. Williams exhibited “exceptional or extreme” nervousness. In making his assessment of Mr. Williams’ nervousness, the officer noted that Mr. Williams spoke with a trembling voice, his upper lip would “twitch somewhat” when the officer asked a question, and his hand shook visibly when he presented his driver’s license to the officer. The officer noted that Mr. Williams’ nervousness never dissipated throughout the entire stop. During this initial approach to the car, the officer also observed a “walkie-talkie” type radio on the front passenger seat, several packs of cigarettes in the front interior, and a green duffle bag in the back seat. The officer recognized the radio as one commonly sold and which had a range of only one to two miles.
While handing his license to the officer, Mr. Williams stated that the car was a rental and provided the rental agreement for the car to the officer. Id. at 233. At some point during this initial approach, but while still holding the license and rental agreement, the officer inquired as to Mr. Williams’ travel plans. Mr. Williams told the officer that although his sister was from Chicago, she had traveled from Chicago to Kansas City with a friend. Mr. Williams explained that his family was having an Easter gathering the following day in Denver, and due to his sister’s fear of flying, he was driving to Kansas City to pick her up and bring her to Denver.
The officer brought the materials back to his patrol car and ran a routine check to ensure the license was valid, which it was. Mr. Williams’ name, however, appeared nowhere on the rental agreement for the vehicle. Instead, the rental agreement contained only the name “Steve Snobl” as a lessee and indicated that the vehicle had been rented in Phoenix, Arizona. When the officer returned to the vehicle and questioned Mr. Williams about the discrepancy on the rental agreement, he explained that Steve Snobl was his uncle and had lent the car to him for the purpose of picking up his sister. Despite the officer’s indication in his testimony that Mr. Williams’ nervousness, possession of a radio commonly used by people driving in tandem, unusual travel plans, and lack of authority to be in possession of the rental car caused him to be suspicious, the officer returned the license and rental agreement to Mr. Williams. In addition, the officer said something to the effect of, “Thanks a lot. We’ll see you.” The officer then, however, asked Mr. Williams if he would mind answering a few additional questions, to which he agreed.
The officer first asked Mr. Williams whether he was carrying any contraband or large amounts of cash to which he stated that he was not. The officer then asked if he could search the car and Mr. Williams refused. At that point, the officer informed Mr. Williams that he would detain him there until a canine unit could come and sniff the outside of the car. At around 2:30 p.m., approximately fifteen minutes after the initial stop, the canine unit arrived and eventually alerted to the trunk area of the vehicle. After obtaining the keys and opening the trunk, the officer discovered several large bales of marijuana. The officer then placed Mr. Williams under arrest, and, after giving his Miranda rights, questioned him about any other individuals with whom he was traveling. Mr. Williams told the officer that he was traveling with other individuals who were *1266 driving a Jeep Cherokee. Another officer later located the other vehicle at a nearby-restaurant and found a walkie-talkie type radio of the same type as that possessed by Mr. Williams in a trash can.
In what it labeled a “close call,” the district court found that the officer in this case had sufficient reasonable suspicion to detain Mr. Williams for the canine sniff of the car. The district court was persuaded by the officer’s descriptions of Mr. Williams’ extreme nervousness. The district court found further that the officer’s suspicions stemming from Mr. Williams’ possession of the radio and lack of authority to be in possession of the rental car were entitled to deference in light of the officer’s experience in detecting criminal activity. Mr. Williams filed a motion to reconsider asserting that a recent case,
United States v. Holt,
Discussion
When reviewing the denial of a motion to suppress, we accept the factual findings of the district court unless they are clearly erroneous,
United States v. Hunnicutt,
The Fourth Amendment protects the “right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures.” U.S. Const, amend. IV. A traffic stop is a “seizure” within the meaning of the Fourth Amendment, “even though the purpose of the stop is limited and the resulting detention quite brief.”
Delaware v. Prouse,
I. Scope of Questioning
Mr. Williams does not question the validity of the initial stop for speeding, so only the second prong of
Terry
— whether the officer’s actions were reasonably related in scope to the stop — is at issue in this case. Mr. Williams argues here, as he did before the district court in a motion to reconsider, that the panel decision in
Unit
*1267
ed States v. Holt,
Holt II
stands for the proposition that a “traffic stop based on probable cause must be judged by examining both the length of the detention and the manner in which it is carried out.”
Holt II,
Mr. Williams’ argument that the questions related to travel plans were outside the scope of the stop also fails because the circumstances that developed placed the questioning within the scope of the stop. By the time the officer began this line of questioning, he already knew that the car was a rental due to his having obtained the rental agreement. While the record indicates that the officer did not yet know of the inconsistent name on the rental agreement at the time he asked about travel plans, it was reasonably within the scope of the stop to ask such questions as the officer began the process of verifying whether Mr. Williams had lawful possession of the vehicle.
See Hunnicutt,
II. Reasonable Suspicion
Mr. Williams next asserts that the officer had no specific, articulable facts sufficient to provide reasonable suspicion for the detention while awaiting the arrival of the canine drug unit. During a routine
*1268
traffic stop, an officer may request a driver’s license and vehicle registration, run a computer check, and issue a citation.
Hunnicutt,
In his brief, Mr. Williams attempts to distill our analysis in an effort to discount each of the individual factors relied upon by the district court. We consider it worth repeating that our analysis of whether an investigative detention is supported by an objectively reasonable suspicion of illegal activity turns on our review of the totality of the circumstances.
United States v. Jones,
From the time the officer indicated that Mr. Williams was free to go to the arrival of the canine drug unit, the only significant event was Mr. Williams’ refusal to allow the officer to search the rental car. From the outset, we recognize that “consideration of such a refusal would violate the Fourth Amendment.”
Wood,
Mr. Williams contends that the district court impermissibly relied upon the officer’s observations of Mr. Williams’ nervousness as a basis for finding that reasonable suspicion existed. The district court found that the “specific and detailed testimony” of the officer regarding Mr. Williams’ trembling hands, shaky voice, and twitching lip displayed “uncommon and extreme” nervousness. We have held consistently that nervousness is “of limited significance” in determining whether reasonable suspicion exists.
See United States v. Wald,
In this case, the district court found credible the officer’s testimony that Mr. Williams’ extreme nervousness did not dissipate throughout the entire stop. Given our standard of review, the record supports the district court’s finding that Mr. Williams’ nervousness exceeded that of the average citizen during a routine traffic stop. While we do recognize that “[n]ervousness alone cannot support reasonable suspicion of criminal activity,”
United States v. Salzano,
Mr. Williams also contends that the presence of a two-way, short-range radio was too innocuous to provide any support for a finding of reasonable suspicion. The district court found that the officer knew from experience that cars traveling in tandem and transporting drugs sometimes used such radios to avoid detection by law enforcement personnel. Although, as pointed out by Mr. Williams in his brief, there are numerous legitimate uses for these types of radios, all of these uses generally involve a link to someone else in close proximity. Thus, the officer could have reasonably inferred that Mr. Williams was using the radio to communicate with individuals in a second vehicle. Coupled with this inference are the officer’s training and experience that provided him with the knowledge of how drug traffickers use such devices while driving in tandem.
See, e.g., United States v. Inocencio,
The district court found that Mr. Williams’ possession of the rental car without being named in the rental agreement “contributed, to some degree” to a finding that reasonable suspicion existed. The district court also relied on the fact that the officer knew from experience that drug couriers often use a third-party rental car. In addition, the district court found it significant that the car had been rented in Phoenix, a city that the officer knew from training and experience to be “a source city for distribution of marijuana.” Id. at 60. Again attempting to turn our totality of circumstances review into a form of elemental analysis, Mr. Williams claims these factors could not give rise to reasonable suspicion.
Although we have stated that “the inability to offer proof of ownership or authorization to operate the vehicle has figured prominently in many of our cases upholding further questioning,”
United States v. Hunnicutt,
The officer knew from his training and experience that drug couriers often use third-party rental cars.
See, e.g., United States v. Figueroa-Lopez,
In this case, however, Mr. Williams provided an explanation of his travel plans that indicated he was coming from Denver, Colorado. Though the explanation may have been facially plausible, we cannot brush aside the officer’s suspicion that arose when he compared the actual source city of the rental vehicle to the city that Mr. Williams had identified as his point of departure. We have stated that answers to questions suggesting an individual is concealing the fact that he had rented a car in a known drug source area can “give rise to suspicion.”
Wood,
After reviewing the rental agreement, observing the family band radio, noting Mr. Williams’ nervousness, and obtaining an explanation of Mr. Williams’ travel plans, the officer nonetheless told Mr. Williams that he was free to go. Mr. Williams seems to suggest in his brief that *1271 this act on the part of the officer nullified any of the suspicion that developed throughout the stop. We disagree.
The significance of an officer returning a driver’s license and registration (or rental agreement) assumes paramount importance when we analyze whether an encounter between a citizen and a law enforcement officer is consensual.
See, e.g., United States v. West,
Finally, Mr. Williams also mentions in his brief that the presence of a single green duffle bag and several cigarette packs could not be suspicious. Though we may agree with these arguments, we note that the district court did not rely on these factors in its denial of the motion to suppress. Nor did it need to rely on these factors. Under the totality of the circumstances, we conclude that Mr. Williams’ extreme nervousness, the presence of the short-range radio, and the discrepancy in the rental agreement all provided the officer with sufficient reasonable suspicion to detain Mr. Williams for the purpose of performing a canine drug search.
See United States v. Kopp,
AFFIRMED.
