¶ 1 The State of Arizona appeals the trial court’s dismissal of charges against Marcos Canales after an evidentiary hearing on Ca-nales’s motion to dismiss based on a lack of probable cause to arrest him for driving under the influence of intoxicating liquor (DUI). Because we conclude the officer lacked reasonable suspicion to detain Canales, we affirm.
Facts and Procedural Background
¶ 2 We view the evidence presented at the suppression hearing in the light most favorable to upholding the trial court’s ruling.
State v. Rosengren,
¶ 3 Based on the results of the blood test, Canales was charged with aggravated DUI while his license was suspended, revoked, or in violation of a restriction; aggravated DUI with an alcohol concentration of 0.08 or more while his license was suspended, revoked, or in violation of a restriction; aggravated DUI having two or more prior DUI convictions; and aggravated DUI with an alcohol concentration of 0.08 or more, having two or more prior DUI convictions. Before trial, Canales filed motions to dismiss for lack of reasonable suspicion and probable cause, and after a hearing, the trial court dismissed based on the lack of probable cause. The state has timely appealed.
Discussion
¶ 4 In the single issue raised on appeal, the state contends the trial court abused its discretion in granting the motion to dismiss because Audetat had probable cause to arrest Canales for DUI. Canales counters that the officer detained him without “any reasonable suspicion of criminal activity or a traffic violation,”
1
which he maintains violated his rights under the Fourth Amendment to the United States Constitution and article Ii, § 8 of the Arizona Constitution. Because we find the reasonable suspicion issue disposi-tive, we do not reach the issue of whether the officer had probable cause to arrest Canales.
See State v. Canez,
¶ 5 We review de novo whether there was reasonable suspicion to conduct an investigatory stop,
State v. Rogers,
¶ 6 Not all interactions between police officers and citizens implicate the Fourth Amendment.
Terry v. Ohio,
117 Audetat testified at the suppression hearing that when he entered the parking lot, he parked his police car “in such a way that [Canales’s] vehicle could not back out,” so that it was “kind of immobilized ... by [his] car.” He then turned on his “alley light,” which shone “in the direction” of the inside of Canales’s car, and immediately approached the driver’s side window on foot. The ti’ial court concluded that this amounted to a “stop, certainly, with the deputy parking behind the vehicle, even though the vehicle had not been moving.”
¶ 8 Audetat’s actions had made it physically impossible for Canales to terminate the encounter by leaving in his vehicle, and by shining a light toward the interior of the car and directly approaching the driver’s side door, Audetat had conveyed to Canales that he was the subject of the inquiry. Under these circumstances a reasonable person would not have believed he was free “to disregard the police and go about his business.”
California v. Hodari D.,
¶ 9 However, this conclusion does not end our analysis. We must also determine whether the detention was supported by reasonable suspicion, which is “a justifiable suspicion that the particular individual to be detained is involved in criminal activity.”
State v. Graciano,
¶ 10 In
Altieri,
the Arizona Department of Public Safety received an anonymous tip claiming that a man was driving a car con
taining
¶ 11 The supreme court acknowledged that “an anonymous tip may, in some circumstances, be sufficient to support a stop, [if it] ... show[s] sufficiently detailed circumstances to indicate that the informant came by his information in a reliable way.”
Id.
¶ 9. And it noted that when the tip “fails to provide sufficient underlying circumstances demonstrating the reliability of the information, the reliability may be supplied by independent observations of the police corroborating the information in the tip.”
Id.; see State v. White,
¶ 12 In
State v. Gomez,
¶ 13 The state argued
Altien
was distinguishable because the tip had been provided by a “ ‘citizen complaint’ rather than a mere ‘anonymous tip.’ ”
Id.
¶ 15. The court noted in
Gomez
that prior eases had suggested “ ‘reliability is enhanced’ when ‘an ordinary citizen volunteers information which he has come upon in the ordinary course of his affairs, completely free of any possible ordinary gain.’ ”
Id., quoting State ex rel. Flournoy v. Wren,
¶ 14
Altieri
and
Gomez
are both consistent with the Supreme Court’s jurisprudence concerning anonymous tips. The Supreme Court has “recognized that an anonymous tip alone seldom demonstrates the informant’s basis of knowledge or veracity inasmuch as ordinary citizens generally do not provide extensive recitations of the basis of their everyday observations and given that the veracity of persons supplying anonymous tips is ‘by hypothesis largely unknown, and unknowable.’ ”
White,
¶ 15 In contrast, the Court found in
J.L.
that officers did not have reasonable suspicion to detain the defendant because the tip merely provided a physical description and an unsupported assertion that he was carrying a gun.
¶ 16 The common thread in these cases is that an anonymous tip is not a sufficient and independent basis for reasonable suspicion unless it is “reliable in its assertion of illegality, not just in its tendency to identify a determinate person.”
Id.
at 272,
¶ 17 We are mindful that as he approached Canales’s vehicle, Audetat observed him place a beer can behind the passenger seat. Although this observation could have provided the basis for reasonable suspicion to initiate a DUI investigation, it did not occur until after Audetat had blocked Canales’s vehicle and had shined his alley light to see inside the ear. Thus, the detention had already occurred before Audetat observed conduct that arguably was sufficient to support the reasonable suspicion necessary to detain Ca-nales. Therefore, the trial court did not err in dismissing the indictment, albeit on another ground.
See Canez,
Disposition
¶ 18 For the reasons stated above, we affirm the trial court’s dismissal of the indictment.
Notes
. The state opted not to file a reply brief and therefore has provided no response to this argument.
. Despite multiple opportunities below and on appeal, the state has never suggested that the caller was identifiable.
. Canales also cites two cases from other jurisdictions:
State v. Guernsey,
