Can police stop a vehicle based solely on an informant's tip? State v. Rose Explained

Background and Facts

In State v. Rose, a motorist observed an older white motorhome weaving in and out of its lane and varying speeds between 15-40 mph on Old Highway 91. When the motorist passed the vehicle, he saw what appeared to be a “little red-headed boy” driving. The motorist called a sheriff’s deputy he knew personally, reporting that a child approximately eight to ten years old was driving erratically. The deputy quickly drove to an intersection where he could observe the highway and saw the informant’s vehicle pass, followed closely by a white motorhome with no other traffic present. However, when the deputy observed the motorhome’s driver, he saw an adult male with a goatee and bandana, not a child. The deputy stopped the motorhome anyway, leading to Dennis Rose’s arrest for DUI and related offenses.

Key Legal Issues

The central issue was whether the deputy possessed reasonable suspicion to conduct the traffic stop under the Fourth Amendment. Rose argued that the informant’s tip lacked sufficient detail and that the deputy failed to adequately corroborate the information before stopping the motorhome, particularly since he observed an adult driver rather than a child.

Court’s Analysis and Holding

The Utah Court of Appeals applied the three-factor test for informant tips: reliability, sufficient detail, and corroboration. The court found that identified citizen informants receive a presumption of reliability, distinguishing this from anonymous tips. Regarding detail and corroboration, the court emphasized the totality of circumstances approach. The deputy’s observation of the informant followed immediately by a motorhome with no other traffic present created reasonable suspicion that this was the reported vehicle, despite the driver discrepancy. The court analogized to State v. Prows, where limited vehicle description sufficed when combined with timing, location, and lack of other traffic.

Practice Implications

This decision demonstrates that perfect corroboration of all tip details is not required for reasonable suspicion. Courts will examine the totality of circumstances, including timing, location, and traffic conditions. For defense counsel, challenges to informant-based stops should address all three required elements systematically. The decision also clarifies that personal acquaintance between informant and officer does not automatically enhance reliability, following Roybal.