Police stopped defendant’s vehicle based on an anonymous telephone tip. The stop revealed defendant was operating while intoxicated. The issue is whether the tip was corroborated by independent police work and, if so, did the tip exhibit sufficient indicia of reliability to provide reasonable suspicion to justify the investigatory stop. We find the tip was sufficiently corroborated and, therefore, the officers had a reasonable suspicion that criminal activity was taking place.
An anonymous motorist, using a cellular car phone, called the police to report he was following a pickup truck that was “all over the roadway.” The anonymous caller gave a description of the truck, including a license number. The caller also told the truck’s location and direction of travel. Two police officers in separate cars heard the dispatcher explain the anonymous caller’s report, followed the caller’s directions, located the truck, and stopped it. At the time of the stop one officer saw another vehicle behind the truck; this was the only other vehicle in the area. The officers made no independent observations of how the defendant was driving.
Upon stopping the truck the officers formed a belief that its driver, Laverne Markus, was intoxicated. Markus was arrested, and he was later charged with third offense operating while intoxicated.
Markus filed a motion to suppress all evidence resulting from his encounter with the two police officers. The district court sustained Markus’s motion and suppressed the evidence. The district court noted (1) that the officers themselves had made no observations of how the truck was being driven, and (2) that they had relied solely on the anonymous caller’s telephone report to reach their belief that improper driving had occurred. The district court concluded the officers lacked sufficient information to justify a reasonable suspicion of criminal activity.
The State was granted discretionary review to challenge the district court’s suppression order. The State argues the anonymous caller’s tip did give the officers enough information to justify a reasonable suspicion of criminal activity. Hence, the State argues the stop of Markus’s truck was justified. The State asserts, among other things, that the police corroborated a portion of the tipster’s information by finding a vehicle matching the tipster’s description at the place specified by the tipster.
I.
The fourth amendment requires a police officer to have reasonable cause to stop a vehicle for investigatory purposes.
State v. Lamp,
If a defendant challenges a stop, alleging that reasonable cause did not exist, the State must show the stopping officer had “specific and articulable cause to support a reasonable belief that criminal activity may have occurred.”
State v. Aschenbrenner,
*408 II.
The Supreme Court recently addressed the issue of corroboration in an anonymous telephone tip situation.
Alabama v. White,
The anonymous caller in the present case gave just as much information as the caller in
White,
and we believe the officers corroborated the caller’s information. The informant called to report a possible operating while intoxicated offense and gave the police dispatcher the vehicle’s license plate number, a detailed description, and the direction of travel in a point-by-point fashion. These facts were corroborated when the officers found the described vehicle going in the direction and on the highway reported by the caller.
See Marben v. State,
We believe, as a result of the caller’s report, the officers had a specific and artic-ulable suspicion of a violation so as to warrant a stop of Markus’s vehicle. The caller was following the defendant and giving a point-by-point description of Markus’s location to the dispatcher. Based on the informant’s claim that the defendant “was all over the roadway” the officers had a specific and articulable suspicion that a traffic violation had occurred and thus the stop of Markus’s vehicle was proper.
III.
The “totality of the circumstances” approach is used to determine whether an informant’s tip established reasonable suspicion.
White,
496 U.S. at -,
The informant’s tip contained sufficient indicia of reliability to provide reasonable suspicion to make the stop. The anonymous caller here is presumably a citizen. Where a citizen informant is involved, a common sense analysis of the totality of the circumstances must be applied to assess the reliability of the information. ,
Niehaus,
We realize anonymous tips are believed to be “presumptively unreliable.” See Comment, Anonymous Tips, Corroboration and Probable Cause: Reconciling the Spinelli/Draper Dichotomy in Illinois v. Gates, 20 Am.Crim.L.Rev. 99, 107 (1982). This “presumption,” however, can be overcome by external considerations. The specificity and underlying circumstances of the tip here increased its reliability.
We conclude that when the officers stopped Markus, the anonymous tip had been sufficiently corroborated by the identification of the vehicle and its location to furnish reasonable suspicion that he was engaged in criminal activity. The investigative stop therefore did not violate the Fourth Amendment of the United States Constitution or Article I section 8 of the Iowa Constitution. The district court erroneously suppressed the police officers’ evidence. We reverse and remand the case for trial.
REVERSED AND REMANDED.
