Michael Suitt appeals the district court’s 1 denial of his motion to suppress evidence that he possessed with intent to *869 distribute 100 kilograms or more of marijuana in violation of 21 U.S.C. § 841(a)(1) and 841(b)(1)(B). We affirm.
I.
Dallas County, Iowa, Deputy Sheriff Scott Faiferlick (“Deputy Faiferlick”) was driving to work with his canine when he observed the appellant, Michael Suitt, driving over the speed limit in a white Ford pickup truck. Observing that Suitt’s truck appeared to have an expired registration, Deputy Faiferlick used a computer in his car to run a check on Suitt’s license plate. The check confirmed that Suitt’s registration had expired.
At 11:31 a.m., Deputy Faiferlick stopped Suitt’s vehicle. After checking Suitt’s driver’s license, proof of insurance, and vehicle registration, Deputy Faiferlick asked Suitt to exit his vehicle and accompany him to the patrol car while Deputy Faiferlick ran additional checks on Suitt’s license and registration. At the suppression hearing, Deputy Faiferlick explained that he wanted to run additional checks because the database used by dispatch is more complete than the database accessed via his car computer. At 11:34 a.m., Deputy Faiferlick told Suitt that he was going to issue a warning ticket.
While writing the warning ticket, Deputy Faiferlick began asking Suitt routine questions about his trip. When asked where he was going, Suitt hesitated and answered that he was heading to Ohio, but could not name the city. When asked whom he was going to see, Suitt said that he was going to see family. When asked for specifics, he replied, “I have some family and friends out there.” When asked how long he would be in Ohio, Suitt said “as much time as I like.” Throughout this questioning, Deputy Faiferlick observed that Suitt appeared nervous and fidgety.
At 11:39 a.m., Deputy Faiferlick ran the second registration check, this time having dispatch use its database. 2 At 11:44 a.m., Deputy Faiferlick gave Suitt a warning ticket and returned his driver’s license. As Suitt was walking away, Deputy Faiferlick asked Suitt whether he had “half a minute” to answer a few final questions. Suitt said that he did, and Deputy Faiferlick then asked him whether he had any contraband in the car. Suitt denied that he had anything illegal. Deputy Faiferlick then asked for permission to search the vehicle. Suitt refused to consent, saying that “I mean I’m kind of in a hurry right now,” and “I’m on a tight schedule.” At this point Deputy Faiferlick decided to walk his drug dog around Suitt’s vehicle. At the suppression hearing, Deputy Faiferlick testified that Suitt’s claim to be on a tight schedule triggered his decision to conduct a dog sniff because it seemed suspicious in light of Suitt’s earlier statements implying that he was not in a hurry. At 11:47 a.m., Deputy Faiferlick’s canine, Hank, alerted to the bed of Suitt’s truck. Deputy Faiferlick then opened the bed of the pickup and discovered 32 bales of marijuana.
After being indicted on one count of possession with intent to distribute 100 kilograms or more of marijuana in violation of 21 U.S.C. § 841(a)(1) and 841(b)(1)(B) and one count of forfeiture under 21 U.S.C. § 853, Suitt filed a motion to suppress evidence, which the district court denied. Subsequently, this Court decided
United States v. Peralez,
II.
“We review a district court’s factual findings for clear error and legal conclusions de novo when reviewing the denial of a motion to suppress.”
United States v. McGlothen,
Dog sniffs of the exterior of a vehicle are not searches under the Fourth Amendment.
See United States v. Olivera-Mendez,
“The Supreme Court has analogized roadside questioning during a traffic stop to a
Terry
stop, which allows an officer with reasonable suspicion to detain an individual in order to ask ‘a moderate number of questions to determine his identity and to try to obtain information confirming or dispelling the officer’s suspicions.’ ”
United States v. Rodriguez-Arreola,
A number of our cases have held that “[o]nce an officer has decided to permit a routine traffic offender to depart with a ticket, a warning, or an all clear, the Fourth Amendment applies to limit any subsequent detention or search.”
Peralez,
Peralez
does not control this case. First of all, its conclusion that the officer unreasonably prolonged the traffic stop was not necessary to its ultimate ruling, i.e. that the evidence need not be suppressed. Because the officer’s decision to conduct a “dog sniff was not the consequence of a constitutional violation,”
id. (quoting Caballes,
Second, there are important factual distinctions between this case and
Peralez
that dissuade us from applying its reasoning here. Until the end of the encounter, Deputy Faiferlick did not ask drug interdiction questions like the officer in
Peralez,
but routine questions about Suitt’s travel plans. The Supreme Court has rejected the notion that the Fourth Amendment prohibits questioning unrelated to the purpose of the original detention, provided that such questioning does not prolong the stop.
Muehler v. Mena,
Finally, there is no indication that the suspects in
Peralez
did or said anything suspicious during the officer’s questioning that justified further interrogation.
See id.
However, Suitt repeatedly gave hesitant, evasive, and incomplete answers to Deputy Faiferlick’s questions. Suitt would have us analyze this situation by focusing on each of his answers to Deputy Faiferlick’s questions and asking whether and at what point Deputy Faiferlick obtained the suspicion necessary to delay the detention for 10 minutes beyond the conclusion of the basis for the initial stop. However, this approach would transform the common sense nature of the reasonable-suspicion standard into a highly artificial and technical inquiry.
See $404,905.00 in U.S. Currency,
“An officer’s suspicion of criminal activity may reasonably grow over the course of a traffic stop as the circumstances unfold and more suspicious facts are uncovered.”
United States v. Linkous,
Having concluded that Deputy Faiferlick’s questioning did not unreasonably prolong the stop, we must now consider whether the dog sniff constituted a discrete constitutional violation. Suitt argues that the dog sniff constituted such a violation because Deputy Faiferlick refused to let him leave after he declined consent to search his car, and that the exercise of his right not to consent to the search was an improper basis on which to continue the stop. While we agree with Suitt that exercising one’s right not to
*873
consent to a search is not a suspicious action that would justify an otherwise unconstitutional seizure, Suitt’s argument fails because the dog sniff was neither a search nor a seizure requiring any Fourth Amendment justification. We have repeatedly upheld dog sniffs that were conducted within a few minutes after a traffic stop ended.
See Alexander,
III.
Accordingly, the judgment below is affirmed.
