United States v. Neugin, 958 F.3d 924

Neugin pled guilty to being a felon in possession of a firearm and ammunition but reserved the right to appeal the district court’s denial of his motion to suppress evidence found in his pickup’s enclosed bed.
Officers responded to a reported verbal altercation; Deputy Clinton accompanied Julie Parrish to the truck and, without asking Neugin, lifted the camper-shell lid to let Parrish retrieve belongings and looked inside.
Clinton saw a bucket of ammunition, ran a background check (which returned that Neugin was a felon), then later observed a shotgun stock and seized the firearm; Neugin was arrested and the vehicle was impounded and inventoried.
The district court denied suppression, treating Clinton’s entry as community-caretaking and invoking plain-view and inevitable-discovery theories; Neugin appealed.
The Tenth Circuit reversed: opening the camper was a Fourth Amendment search, the community-caretaking exception did not apply, and inevitable discovery failed; the ammunition and firearm should have been suppressed.

Issue	Neugin’s Argument	Government’s Argument	Held
Was opening the camper a Fourth Amendment search?	Yes — enclosed camper shell created a reasonable expectation of privacy.	No — officer was performing a caretaking function / not seeking evidence.	Yes — lifting the latch and looking inside was a search.
Does the community-caretaking exception justify the warrantless opening?	No — no specific, articulable facts showing danger; nonintrusive alternatives existed.	Yes — officer needed to separate the couple, protect safety and property, and assist Parrish.	No — exception does not apply; action was not reasonably tailored to caretaking purposes.
Does the plain-view doctrine validate the seizure?	No — plain view inapplicable because initial intrusion was unconstitutional.	Yes — ammunition was in plain view once the camper was open.	No — plain view fails because lawful positioning was not established.
Does the inevitable-discovery doctrine permit admission?	No — government hasn’t shown by a preponderance that evidence would inevitably have been discovered lawfully.	Yes — truck would have been impounded and inventoried and evidence found.	No — government’s inevitability theory was speculative and failed.

Cady v. Dombrowski, 413 U.S. 433 (1973) (establishing community-caretaking exception in vehicle context)
United States v. Jones, 565 U.S. 400 (2012) (physical intrusion on private property to obtain information constitutes a search)
Brigham City v. Stuart, 547 U.S. 398 (2006) (officer’s duty to prevent violence relevant to reasonableness analysis)
Horton v. California, 496 U.S. 128 (1990) (limits of the plain-view doctrine tied to lawful arrival point)
Nix v. Williams, 467 U.S. 431 (1984) (framework for inevitable discovery doctrine)
Mapp v. Ohio, 367 U.S. 643 (1961) (exclusionary rule for unlawfully obtained evidence)
United States v. Ludwig, 641 F.3d 1243 (10th Cir. 2011) (opening a car trunk is a search)
United States v. Garner, 416 F.3d 1208 (10th Cir. 2005) (community-caretaking requires specific, articulable facts and tailored scope)
United States v. Owens, 782 F.2d 146 (10th Cir. 1986) (inevitable-discovery cannot rest on speculation)