United States v. Aguilar-Garza, 5:18-cr-00368

Background

On May 6, 2018, Border Patrol Agent Jose Luis Martinez approached Jonatan Aguilar‑Garza at a Lavame car wash in Hebbronville, TX, after noticing Aguilar’s vehicle pulled over earlier with hazard lights on. Aguilar was outside his truck retrieving a phone and then parked in a wash stall.
Agent Martinez told Aguilar he could not leave without producing identification; Aguilar initially asserted his rights then produced a Texas limited‑term driver’s permit and his DACA work‑authorization card when pressured.
After confirming Aguilar’s documentation, agents nevertheless demanded to search his truck; Aguilar refused and attempted to record the encounter. Agents prevented him from accessing the vehicle and threatened use of a drug dog or a county search.
Under pressure Aguilar admitted there was a firearm in the truck; agents retrieved a pistol and ammunition and then arrested him after confirming (with a supervisor) that DACA recipients may not lawfully possess firearms.
Aguilar moved to suppress his statements and the firearm evidence, arguing the initial detention lacked reasonable suspicion and that subsequent confession and consent were tainted by the unlawful detention. The court held an evidentiary hearing and found agent testimony inconsistent in places.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
1. Was Aguilar unlawfully detained at the car wash (reasonable suspicion to seize)?	Border Patrol: proffered border‑context factors supported a brief immigration stop.	Aguilar: agent lacked reasonable, articulable suspicion under Brignoni‑Ponce factors.	Held: No reasonable suspicion; detention was unlawful at inception.
2. Did officers exceed the permissible scope/length of investigation after learning Aguilar’s status?	Border Patrol: once non‑citizenship arose, further investigation into status and property was justified.	Aguilar: once documents confirmed permission to be in U.S., detention authority ended; continued questioning was unreasonable.	Held: Scope/length exceeded; authority to detain ended after documentation verified.
3. Should Aguilar’s admission about the gun be suppressed as fruit of the illegal seizure?	Government: confession led to probable cause for arrest, so admissible.	Aguilar: confession was temporally and causally linked to illegal detention and coercive tactics, so must be suppressed.	Held: Confession suppressed—close temporal proximity, no intervening circumstances, and flagrant misconduct.
4. Should the firearm and ammunition be suppressed (consent/search incident to arrest)?	Government: search valid as search incident to arrest or consent; evidence would inevitably/independently be discovered.	Aguilar: retrieval was product of coerced/confession‑tainted consent and no independent probable cause.	Held: Firearm and ammunition suppressed—consent and arrest were tainted by the illegal detention.

Key Cases Cited

Davis v. United States, 564 U.S. 229 (exclusionary rule and suppressed evidence principles)
Terry v. Ohio, 392 U.S. 1 (standards for investigatory stops and seizures)
Brignoni‑Ponce v. United States, 422 U.S. 873 (factors for border/roving patrol reasonable suspicion)
Rodriguez v. United States, 575 U.S. 348 (stop cannot be prolonged beyond mission; time/scope limits)
Brown v. Illinois, 422 U.S. 590 (factors for determining whether a confession is the fruit of illegal arrest)
Wong Sun v. United States, 371 U.S. 471 (fruit‑of‑the‑poisonous‑tree and attenuation principles)
United States v. Hernandez, 670 F.3d 616 (Fifth Circuit on suppression of statements tainted by Fourth Amendment violations)
United States v. Castillo, 804 F.3d 361 (reasonable suspicion level explained)