Phelps v. State, 278 P.3d 1148

Germain stopped Phelps and Fitch for following too closely on I-80; a drug dog sniff followed and led to a search yielding marijuana.
Phelps and Fitch were charged with three felonies and moved to suppress the seized evidence; their motions were denied.
They pled guilty to one count each while preserving the right to appeal the suppression ruling.
The State moved to join their cases for a joint suppression hearing; the district court granted the motion and denied the suppression motions.
Evidence included the trooper’s observations of tailgating and the occupants’ nervousness; the district court found the stop and extended detention reasonable under all circumstances, and the dog’s alert founded probable cause for the search.
Phelps and Fitch reserved their right to appeal the suppression denial; the court ultimately affirmed the suppression denial and convictions.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Was the initial stop supported by probable cause or reasonable suspicion?	Phelps; Fitch argued the stop violated Article 1, §4 and the Fourth Amendment.	State contends probable cause existed to stop for tailgating; also, ultimately, stop permissible.	The stop was reasonable under Article 1, §4 and the Fourth Amendment.
Did the detention exceed the scope of the investigatory stop?	Phelps; Fitch claimed extended questioning exceeded permissible detention.	State argued questioning was reasonably related to the stop given developing suspicion.	Detention was reasonable and within scope.
Did the dog's alert establish probable cause to search?	Phelps; Fitch asserted unreliability of the dog and improper cues.	State argued trained, certified dog reliably detected odor, establishing probable cause.	Dog alert plus certifications supported probable cause to search.
Did the district court abuse its discretion by denying discovery/motion to suppress?	Phelps; Fitch contended discovery/suppress rulings were erroneous.	State asserted the discovery ruling was appropriate; issue not dispositive due to plea.	Court declined to address discovery issue; plea preserved only dispositive issues.

Vasquez v. State, 990 P.2d 476 (Wy. 1999) (constitutional requirement that seizures be reasonable under all circumstances)
Lovato v. State, 2010 WY 38 (Wy. 2010) (investigative detention and questioning during traffic stops must be limited to routine matters)
O'Boyle v. State, 117 P.3d 401 (Wy. 2005) (distinction where suspicions did not justify further detention)
Negrette v. State, 158 P.3d 679 (Wy. 2007) (totality of circumstances may support reasonable suspicion to detain)
United States v. Ludwig, 641 F.3d 1243 (10th Cir. 2011) (positive drug-dog alert typically suffices for probable cause when dog is certified)
Dickey v. State, 261 P.3d 739 (Wy. 2011) (drug-dog alerts can establish probable cause when properly trained and reliable)