
669 S.E.2d 558 (2008)
LEWIS
v.
The STATE.
No. A08A2127.
Court of Appeals of Georgia.
November 17, 2008.
*560 J. Alfred Johnson, Marietta, for Appellant.
Patrick H. Head, Dist. Atty., Henry Rance Thompson, John Richard Edwards, Dana J. Norman, Asst. Dist. Atty., for Appellee.
BLACKBURN, Presiding Judge.
Following a stipulated bench trial, Horatio Lewis appeals his conviction of possession of cocaine with intent to distribute,[1] contending that the trial court erred by denying his motion to suppress evidence found in his vehicle during an inventory search after his arrest. Because the arrest arose from a valid Terry stop based on reasonable articulable suspicion under the totality of the circumstances, and because the officer was then authorized to perform an inventory search prior to impounding Lewis's vehicle, we affirm.
When an appellate court reviews a trial court's order concerning a motion to suppress evidence, the appellate court should be guided by three principles with regard to the interpretation of the trial court's judgment of the facts. First, when a motion to suppress is heard by the trial judge, that judge sits as the trier of facts. The trial judge hears the evidence, and his findings based upon conflicting evidence are analogous to the verdict of a jury and should not be disturbed by a reviewing court if there is any evidence to support it. Second, the trial court's decision with regard to questions of fact and credibility... must be accepted unless clearly erroneous. Third, the reviewing court must construe the evidence most favorably to the upholding of the trial court's findings and judgment.
(Citations and punctuation omitted; emphasis omitted and supplied.) Tate v. State.[2]
So construed, the evidence from the suppression hearing shows that a patrol officer received a call from dispatch to go to a particular intersection to look for an African-American male, who was apparently selling drugs and was dressed in blue jeans, a gray hooded sweatshirt, and white sneakers. Upon responding to the call, the officer saw Lewis, an African-American male, very near the specified intersection and wearing blue jeans, a gray hooded sweatshirt, and white sneakers. As the officer slowed his patrol car to a stop, Lewis noticed the officer approaching and began putting his hands down into the waistband of his pants. The officer exited his vehicle, unholstered his weapon, and told Lewis to stop what he was doing and to get on the ground. At that point, Lewis began walking toward a truck parked on the sidewalk near where Lewis was standing, and the officer again ordered him to stop. Lewis then broke into a run, fled behind some nearby houses, crossed through several back yards, and was ultimately tackled and arrested by the officer for obstruction.
The officer searched Lewis and found no contraband on Lewis but found keys to the truck where he first encountered Lewis. The officer searched the illegally parked *561 truck prior to impounding it and discovered 87.4 grams of suspected crack cocaine, $1,565 in cash, and Lewis's identification. Lewis was charged with obstruction (which was nolle prossed) and trafficking in cocaine (which was reduced to possession with intent to distribute). Lewis moved to suppress the evidence found in his vehicle, which motion was denied after an evidentiary hearing. Following an unsuccessful motion to reconsider, Lewis agreed to a stipulated bench trial, in which he was found guilty of the possession charge, giving rise to this appeal.
1. Lewis contends that the officer's initial encounter amounted to an illegal arrest without probable cause. We disagree.
(a) Whether the initial stop was a full-scale arrest. "Georgia recognizes three tiers of police-citizen encounters: consensual encounters; brief investigatory stops that require reasonable suspicion; and arrests that require probable cause." State v. Devine.[3]
[I]t is a mixed question of fact and law as to which type of encounter is occurring: The test for determining whether a person has been placed under custodial arrest is whether the individual was formally arrested or restrained to a degree associated with a formal arrest, not whether the police had probable cause to arrest. The test is whether a reasonable person in the suspect's position would have thought the detention would not be temporary. A trial court deciding whether to admit evidence must apply this objective test; it is the reasonable belief of an ordinary person under such circumstances, and not the subjective belief or intent of the officer, that determines whether an arrest has been effected.... [T]o the extent that determination of the issue hinges on resolution of factual questions, we construe the evidence most favorably to uphold the trial court's findings and accept those findings unless they are clearly erroneous; but we independently apply the legal principles to those facts.
(Punctuation omitted.) State v. Fisher.[4] See State v. Dixon.[5]
Here, the officer, upon seeing Lewis notice him and reach into his waistband, unholstered his weapon and ordered Lewis to stop what he was doing and to get on the ground. Though the encounter was brief, the officer did not tell Lewis that he was under arrest, he did not order Lewis to put his hands behind his back, and he did not order Lewis into the back of his patrol car. The officer's order was given in the context of his investigation of a potentially-armed drug suspect and in light of Lewis's observed hand motions.
Based on this factual scenario, we cannot say that the trial court erred in concluding that the encounter was a second-tier investigatory detention rather than a full-scale arrest, as the forcible nature of the stop arose from the officer's primary concern at that point for his safety, and as the nature of the detention did not unambiguously convey a prolonged custodial arrest. A second-tier "investigatory stop is not automatically an arrest simply because an officer is armed[;]... it is often necessary for the police to approach a person with a drawn weapon in a suspiciously dangerous situation in order to protect the physical well-being of both police officers and the public." (Citation and punctuation omitted.) State v. Burks.[6]
For example, this Court has held that officers were authorized to conduct a Terry stop by unholstering their service weapons, pointing them at a suspect, and handcuffing him, when the suspect met a description of an armed man and the suspect, after reaching into his vehicle, approached the officers and refused to show his hands (despite commands from police). See Carter v. State.[7] See also State v. Burks, supra, 240 Ga.App. at 427(1), *562 523 S.E.2d 648 (affirming finding of authorized second-tier encounter where officer drew weapon and ordered suspect to stop as suspect crawled through an opening in a private fence at 4:15 a.m.). To hold otherwise would require that an officer's precautionary, defensive tactics must be based on probable cause. That would unduly limit officers' ability to operate in the field, and we decline to do so here.
(b) Whether the officer had authority to perform a second-tier detention. As the encounter was a second-tier detention, we must determine whether the detention was
justified by specific and articulable facts which, taken together with rational inferences from those facts, reasonably warrant that intrusion. The officer must have a particularized and objective basis for suspecting the particular person stopped of criminal activity. While the officer's suspicion need not meet the standard of probable cause, it must be more than mere caprice or a hunch or an inclination.
(Citation and punctuation omitted.) Reynolds v. State.[8]
Here, the encounter began when the officer responded to a call from dispatch regarding an individual suspected of selling narcotics based on a call from an anonymous source. The responding officer spotted Lewis (who fully matched every element of the description given to him by dispatch) and slowed his cruiser to speak to Lewis. According to the officer's testimony at the suppression hearing, when the officer observed Lewis immediately putting his hands into his waistband, the officer suspected that Lewis could be reaching for a weapon, based on the officer's training and experience, which included performing more than 75 drug arrests. "Given the totality of the circumstancesthe anonymous tip and the officer[']s personal observations of the suspect's actions at the scenethe brief investigative detention ... was reasonable in this case," even at gunpoint. Carter v. State, supra, 287 Ga.App. at 599, 651 S.E.2d 759. See Hinson v. State[9] (forcible investigatory detention justified by circumstances). Therefore, the trial court did not err in finding that the initial stop was justified.[10]
2. Lewis also contends that the officer lacked authority to pursue him, arrest him, and search his vehicle. However, once the officer ordered Lewis to stop, based on his reasonable suspicion that Lewis had been selling drugs and was now reaching for a weapon or contraband, Lewis failed to heed the officer's order and broke into a run. This failure to obey the officer's lawful command gave rise to probable cause justifying the officer's subsequent arrest of Lewis for obstruction. See OCGA §§ 16-10-24(b) (obstruction); 17-4-20(a) ("[a]n arrest for a crime may be made by a law enforcement officer ... without a warrant if the offense is committed in such officer's presence or within such officer's immediate knowledge"); In re E.C.[11] ("[f]light, or attempted flight, after a lawful command to halt constitutes obstruction of an officer within the meaning of OCGA § 16-10-24") (punctuation omitted).
Having lawfully arrested Lewis for obstruction, the officer was authorized to impound Lewis's vehicle which the officer stated was parked illegally on the sidewalk.
While the police may not impound a car to search for contraband, they may impound *563 a vehicle if they must take charge of it for some reason. The ultimate test for the validity of the police's conduct is whether, under the circumstances then confronting the police, their conduct was reasonable within the meaning of the Fourth Amendment.
(Citation and punctuation omitted.) Johnson v. State.[12] Here, the arresting officer testified that Lewis's vehicle was parked on the sidewalk, no one else was there to move it, and the officer "had no choice" but to move it. See OCGA § 40-6-203(a)(1)(B) ("no person shall ... park a vehicle ... on a sidewalk....") Under these circumstances, the evidence supported the trial court's conclusion that the officer's decision to impound the vehicle was reasonable.
As part of the impound process, the officer was authorized to perform an inventory search in connection with the impoundment, because "[t]he contents of an impounded vehicle are routinely [properly] inventoried to protect the property of the owner, protect the officers against claims for lost or stolen property, and protect the police from potential danger." (Punctuation omitted.) Wright v. State.[13] Accordingly, in light of the circumstances of this case, the trial court did not err in failing to exclude the evidence police discovered during the inventory search of Lewis's vehicle.
Judgment affirmed.
MILLER and ELLINGTON, JJ., concur.
NOTES
[1]  OCGA § 16-13-30(b).
[2]  Tate v. State, 264 Ga. 53, 54(1), 440 S.E.2d 646 (1994).
[3]  State v. Devine, 276 Ga.App. 159, 160, 622 S.E.2d 854 (2005).
[4]  State v. Fisher, 293 Ga.App. 228, 230, 666 S.E.2d 594 (2008).
[5]  State v. Dixon, 267 Ga.App. 320, 321, 599 S.E.2d 284 (2004).
[6]  State v. Burks, 240 Ga.App. 425, 426-427(1), 523 S.E.2d 648 (1999).
[7]  Carter v. State, 287 Ga.App. 597, 598-599, 651 S.E.2d 759 (2007).
[8]  Reynolds v. State, 280 Ga.App. 712, 714(1), 634 S.E.2d 842 (2006).
[9]  Hinson v. State, 229 Ga.App. 840, 842(1)(c), 494 S.E.2d 693 (1997), rev'd on other grounds, State v. Hinson, 269 Ga. 862, 506 S.E.2d 870 (1998).
[10]  In so holding, we note that the stop here was not based solely on the anonymous tip, so we find this case distinct from Florida v. J.L., 529 U.S. 266, 120 S.Ct. 1375, 146 L.Ed.2d 254 (2000), and others, which hold that an anonymous tip alone is insufficient to justify a second-tier detention. See Carter v. State, supra, 287 Ga.App. at 599, 651 S.E.2d 759 ("[a]n anonymous tip may be paired with the surrounding circumstances when evaluating an officer's basis for a Terry stop"). Compare Duke v. State, 257 Ga.App. 609, 610, 571 S.E.2d 414 (2002) (reversing denial of motion to suppress because officer's Terry stop was based solely on radio relay of anonymous tip and the State provided no additional evidence of police's collective knowledge supporting reasonable suspicion).
[11]  In re E.C., 292 Ga.App. 798, 800, 665 S.E.2d 896 (2008).
[12]  Johnson v. State, 263 Ga.App. 443, 445(1), 587 S.E.2d 775 (2003).
[13]  Wright v. State, 276 Ga. 454, 460(5), 579 S.E.2d 214 (2003).
