OPINION
In this case, the state appealed a pretrial order by the district court suppressing crack cocaine seized during the consensual search of a vehicle stopped for speeding, and also suppressing additional evidence of drug possession and drug use subsequently seized at the stationhouse from the driver, appellant Peggy Louise Burbach. The court of appeals reversed the district court, concluding that the officer’s detection of the odor of alcohol coming from Burbach’s vehicle justified the officer’s search.
State v. Burbach,
No. A04-1530,
Shortly before 1:30 a.m. on February 8, 2004, a police officer clocked Burbach traveling 55 miles per hour in a 30-miles-per-hour speed zone on 6th Street in Winona, Minnesota. The officer pulled up behind Burbach and turned on his lights, and she pulled over after traveling about a block and then drove slowly in the parking lane for three quarters of a block before stopping. Once the officer approached the vehicle and had Burbach identify herself, he remembered her name and her vehicle’s license plate from a tip he had received from his sergeant at a shift-change meeting one or two weeks earlier. At the meeting, his sergeant had shown him a short list of the license-plate numbers of vehicles suspected by narcotics officers of carrying crack cocaine. His sergeant also told him the corresponding owners’ names, including Burbach’s.
As the officer spoke to Burbach, he detected a strong odor of alcohol, but he could not tell if the smell came from Bur-bach or her passenger, a middle-aged man seated next to her. The passenger volunteered that the alcohol smell came from him, and after ordering Burbach out of the car, the officer smelled no odor of alcohol coming from her. The officer then conducted a nystagmus-gaze test on Burbach, which showed no signs of nystagmus, and a breathalyzer test, which indicated that Burbach’s alcohol concentration was .000. In addition, Burbach’s eyes were neither watery nor bloodshot, and she had no problems related to balance, coordination, vision, following directions, answering questions, or with slurred or ungrammatical speech. The officer concluded that the odor of alcohol did not come from Bur-bach, but he felt that she was significantly more nervous, fidgety, and talkative than a normally nervous person in a traffic stop. He asked her if she had recently used any illegal drugs or if she had any in her car. She answered “no” to both questions, although she said she had taken some NyQuil earlier in the evening.
*487 At this point, about 15 minutes into the traffic stop, the officer requested and obtained Burbach’s consent to search the vehicle. He testified that he wanted to search the vehicle because Burbach’s nervous behavior suggested impairment, and that the tip he had received at the shift-change meeting made him more eager to search due to its suggestion that her car may contain crack cocaine. After a second officer removed Burbach’s passenger from the vehicle, the officer opened the driver’s side door and saw three baggies of crack cocaine sitting on the passenger seat. The officers then arrested Burbach and her passenger. At the stationhouse, an additional rock of crack cocaine and a pipe were found in Burbach’s bra during a body search. She also consented to a urine test, and its results showed that she had marijuana and cocaine in her system.
The state charged Burbach with possession of narcotics, driving under the influence of a controlled substance, possession of drug paraphernalia, speeding, and failure to provide proof of insurance. Bur-bach moved to suppress the crack cocaine and the other drug-related evidence fo'und during the vehicle search and subsequently at the stationhouse, arguing that the search of her vehicle was a violation of her rights under Article I, Section 10 of the Minnesota Constitution because the search was not supported by a reasonable, articu-lable suspicion of criminal activity beyond the original purpose of the stop, and that evidence obtained subsequent to the search was therefore also tainted. Relying on our decision in
State v. Fort,
I.
This case presents two questions. First, Burbach asks us to revisit the court of appeals’ determination that a request to search a vehicle is justified under the Minnesota Constitution when an officer detects the odor of alcohol coming from an adult passenger. Second, we consider the state’s contention that, under the totality of circumstances in this case, the officer’s request to search Burbach’s vehicle was justified by a reasonable, articulable suspicion of drug possession.
We undertake a de novo review to determine whether a search or seizure is justified by reasonable suspicion or by probable cause.
State v. Lee,
Both the United States and Minnesota Constitutions prohibit “unreasonable searches and seizures.” U.S.
*488
Const, amend. IV; Minn. Const, art. I, § 10. Generally, “a search conducted without a warrant issued upon probable cause is
per se
unreasonable.”
State v. Hanley,
In
Atwater v. City of Lago Vista,
the United States Supreme Court determined that “[i]f an officer has probable cause to believe that an individual has committed even a very minor criminal offense in his presence, he may, without violating the Fourth Amendment, arrest the offender.”
But we have rejected the
Atwa-ter
approach as a “sharp departure” from our search and seizure jurisprudence.
State v. Askerooth,
When an officer expands a traffic stop by requesting to search a vehicle, and when this request is not justified by the original purpose of the stop, the officer must have a “reasonable articulable suspicion of other criminal activity” going beyond the initial reason for the stop.
Fort,
Since reasonable, articulable suspicion must be “particularized,” we must evaluate the state’s two proffered justifications for the search separately.
Fort,
II.
The state urges that the odor of alcohol coming from a vehicle should always justify a search for open containers of alcohol. It supports this claim with our decision in
Schinzing,
in which we held that a vehicle search was permissible when an officer pulled a vehicle over for suspicious driving, was told by the passengers that they were 17 years old, smelled alcohol coming from the vehicle, and was told by the passengers that they had been drinking.
[The officer’s] detection of the odor of alcohol coming from the car gave him probable cause to believe that a search of the passenger compartment would reveal open bottles or cans of alcohol.
Id. at 109.
The state argues that this language articulates a bright-line rule that the odor of alcohol always justifies a vehicle search. We disagree. Since analysis under Article 1, Section 10 of the Minnesota Constitution must be “individualized” and viewed under “the totality of the circumstances” of each case, the odor of alcohol in Schinzing must be examined in light of its particular context. Most significantly, in Schinzing the officer’s knowledge that the vehicle’s passengers were 17 made his detection of the odor of alcohol clear evidence of underage drinking. Having established this first alcohol-related crime, it was reasonable to suspect an open-container violation as well. Since people who are underage cannot legally drink alcohol, such people are more likely to drink in vehicles, out of the public view. Therefore, when the officer in Schinzing smelled the odor of alcohol, he had a reasonable, articulable suspicion of additional criminal activity beyond the original purpose of the stop, and he was justified searching the vehicle.
But the circumstances in this case are very different. Burbach’s adult passenger volunteered that he had been drinking earlier, and the officer knew, after getting Burbach out of the vehicle and performing sobriety tests, that she had not been drinking. At best, these facts provide only an attenuated inference of an open container. To allow a vehicle search solely because an adult passenger smelled of alcohol would be to permit highly speculative searches against a large group of entirely law-abiding motorists, including designated drivers. Such a rule would not comport with the substantial privacy interest in motor vehicles that the Minnesota Constitution ensures.
State v. Wiegand,
III.
Since the request to search was not justified by a reasonable, articulable suspicion of an open container, we consider the state’s contention it was justified as a search for illegal drugs. 2 The state points *490 to three factors suggesting that Burbach was on drugs or in possession of them: (1) Burbach’s demeanor, which was nervous, fidgety, and talkative in a way that the officer found more extreme than usual; (2) the tip the officer had received from his sergeant one to two weeks earlier; and (3) Burbach’s driving behavior.
First, we consider Burbach’s demeanor. We have been reluctant to rely on nervous behavior as evidence to support a reasonable, articulable suspicion of criminal activity.
See Wiegand,
Second, we turn to the tip, which must be evaluated in the context of the totality of the circumstances.
State v. McCloskey,
Third, we believe that Burbach’s driving behavior — speeding 55 miles per hour in a 30-miles-per-hour zone, and perhaps pulling over and stopping somewhat slowly— provides little reason to suspect drug possession.
Each of these factors is weak evidence of drug possession, and they are also weak in the aggregate. In addition, Burbach showed no other signs of impairment. Her eyes were neither watery nor bloodshot and showed no signs of nystagmus, and she had no problems related to balance, coordination, vision, following directions, answering questions, or with slurred or ungrammatical speech. There *491 fore, we hold that under Article I, Section 10 of the Minnesota Constitution, when an officer’s suspicion of drug possession during a traffic stop is supported only by a driver’s nervous behavior, an unsubstantiated tip of unknown origin, and speeding, and when the driver does not exhibit other signs of impairment, the officer does not have a reasonable, articulable suspicion of drug possession sufficient to permit the officer to expand the traffic stop by requesting to search the vehicle.
We conclude that because there was not a reasonable, articulable suspicion of any additional criminal activity aside from the initial reason for the stop, the officer was not justified requesting to search Bur-bach’s vehicle. We therefore reverse the decision of the court of appeals. Accordingly, we reinstate the decision of the district court suppressing both the evidence seized during the search of Burbach’s vehicle and all evidence seized subsequently as a result of her arrest, and also dismissing the charges of fourth-degree driving while impaired, fifth-degree possession of a controlled substance, and possession of drug paraphernalia. We remand to the district court for further proceedings on the remaining charges of speeding and failure to provide proof of insurance.
Reversed and remanded.
Notes
. Under Minnesota Rule of Criminal Procedure 28.04, subds. 1(1) and 2(1), the state can appeal a pretrial order in a criminal prosecution if the order will "have a critical impact on the outcome of the trial.” Here, since the suppression of the evidence led directly to the dismissal of all the state's drug-related charges, it is clear that the order had the requisite critical impact.
. Two of the state's other arguments deserve brief mention here. First, the state also argues that the search was justified as a search incident to probable cause to arrest for driving under the influence of drugs. Since the relevant evidence supporting this theory is the same evidence that supports a suspicion of drug possession, and since the reasonable-suspicion standard is no higher than the probable-cause-to-arrest standard,
Wiegand,
645
*490
N.W.2d at 133, we need only address the question of reasonable suspicion of drug possession. Second, the state argues that the search was justified as a search incident to probable cause to arrest for speeding and failure to provide proof of insurance. However, we have held that minor violations such as these, which call for citation only under Minn. R.Crim. P. § 6.01, may not be tire basis for a search incident to probable cause to arrest.
State v. Vamado,
