Jourdarryl Karrie Horton appeals from the district court’s denial of his motion to suppress. We affirm.
I.
FACTS AND PROCEDURE
On the afternoon of June 7, 2008, a police officer observed a vehicle, later determined to be driven by Horton, drive past him. The vehicle had no front license plate. The officer turned and followed the vehicle and ran a registration check on the rear license, an Idaho plate reading “RPO 393.” The return included over ten “screens” of information, where the normal return included three to four screens. The return also included various other license plate numbers, no vehicle description and a registered owner, “Tactical Recovery.” The officer pulled the vehicle over before reading all of the screens.
Horton told the officer that he had repossessed the vehicle on behalf of his employer, Tactical Recovery. The officer then ran a check on Horton’s driver’s license and discovered an outstanding arrest warrant. The officer arrested Horton, placed him in the back seat of the police vehicle, and searched the vehicle, which resulted in the discovery of marijuana, methamphetamine, and drug paraphernalia. Horton was charged with possession of marijuana with the intent to deliver, possession of drug paraphernalia, and, in a separate case, possession of methamphetamine.
Horton moved to suppress the drug evidence, asserting that the vehicle was stopped without the requisite reasonable suspicion of a traffic offense. He contended that he was driving lawfully because under the applicable Idaho statute a license plate assigned to a repossession agent is to be attached only to the rear of a vehicle. The state responded that the motion should be denied because the officer had made a reasonable mistake in stopping the vehicle and, alternatively, that if the seizure was initially illegal, it was “attenuated” by the subsequently discovered warrant for Horton’s arrest.
See State v. Page,
After considering the testimony of the arresting officer and an Idaho Transportation Department employee, the district court denied the motion. The court concluded, in essence, that the officer had made a reasonable mistake of fact in that at the time he stopped the vehicle he did not know that the Idaho license plate was one assigned to a repossession agent. More specifically, the court found that the officer reasonably did not know that it was the Department’s unwritten practice to use the designation “RPO” when assigning Idaho license plates to a repossession agent, that the Department issues relatively few repossession plates and the officer had never seen one before, and *302 that the officer did not know that Tactical Recovery was a repossession agent. Horton entered a conditional guilty plea to possession of marijuana with intent to deliver reserving the right to appeal from the denial of his suppression motion, and the remaining charges were dismissed pursuant to a plea agreement.
II.
ANALYSIS
Horton contends that the stop of his vehicle was made without the requisite reasonable suspicion of a traffic offense and that the district court erred in concluding that the officer’s mistake in doing so was reasonable. We begin with the applicable review and legal standards.
The stop of a vehicle constitutes a “seizure” of the occupants that implicates the Fourth Amendment guarantee against unreasonable searches and seizures.
Delaware v. Prouse,
Determinations of reasonable suspicion and probable cause are reviewed
de novo
on appeal.
State v. Munoz,
Here, Idaho Code § 4ÍM28 provides, in pertinent part:
(1) License plates assigned to a motor vehicle shall be attached, one (1) in the front and the other in the rear, with the exception of the following:
(a) ... the license plate assigned to a motor vehicle operated by a manufacturer, repossession agent or dealer shall be attached to the rear.
(Emphasis added.) The Idaho Legislature has not, by statute, set forth the lettering designation assigned to Idaho license plates issued to a manufacturer, repossession agent or dealer. Instead, it has authorized the Idaho Transportation Department to adopt administrative rules to this effect. I.C. § 49-201; IDAPA 39.02.60.000; IDAPA 39.02.60.011. In accord, the Department has adopted administrative rules establishing the lettering designation of manufacturer (“MFR”) and dealer (“DLR”) plates, see IDAPA 39.02.60.150, but it has failed to do so with regard to repossession agent plates. Instead, as testified to by a Department senior special agent at the suppression hearing, the repossession plate program is “kind of an anomaly” in that the Department has followed an unwritten practice of assigning the lettering designation “RPO” for the limited number, approximately ninety-five, of Idaho repossession agent plates issued statewide. The witness also stated the repossession plate program is designed solely for a financial institution to recover a motor vehicle in which it has a security interest and that the repossession agent is authorized to move the vehicle from the place of repossession to the financial institution’s place of business on a repossession plate. See I.C. § 49-402(7).
The police officer that made the stop testified that although he was aware that Idaho repossession plates existed, he had never seen one and was unaware, until after the fact, that the designation “RPO” was used for these plates. The officer also said that he did not know until speaking to Horton at the time of the stop that “Tactical Recovery” was a repossession agent.
The parties, in essence, disagree whether the officer’s mistake here was one of fact or law, and the line between the two is not always easy to draw. For instance, in
McCarthy,
Here, the officer did not know that the lettering designation “RPO” was used for an Idaho repossession plate. While the officer *304 had heard of repossession dealer plates, he had never seen one and was unable to distinguish or identify its designation. His mistake was not the law generally regarding a repossession agent plate or its legal existence, but whether, in fact, the plate on this vehicle was a designated repossession plate. Because this designation had not been codified by statute or ITD administrative rule, we conclude that the mistake at issue was primarily one of fact, not one of law.
When we review an order granting or denying a motion to suppress, we accept the trial court’s factual findings, unless they are clearly erroneous.
Munoz,
Horton also argues that the search of his vehicle incident to his arrest was illegal under the standards recently announced by the United States Supreme Court in
Arizona v. Gant,
556 U.S.-,
Our disposition renders it unnecessary to address any further matters asserted by the parties. Accordingly, the district court’s order denying the motion to suppress is affirmed.
