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S-1-SC-40763
N.M.
Jul 8, 2026
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Background

  • Defendant moved to suppress evidence from a warrantless Texas vehicle search that led to discovery of a handgun linked to two New Mexico murders. 1
  • Deputy Baker stopped a New Mexico-registered car in Texas, obtained the driver’s admission to marijuana, and then searched the vehicle after detaining Defendant. 2
  • The district court granted suppression under Article II, Section 10 of the New Mexico Constitution after relying on Snyder and Cardenas-Alvarez. 3
  • The State appealed, arguing Texas law should govern because the search occurred in Texas and was lawful there. 4
  • The Supreme Court reviewed de novo whether New Mexico constitutional exclusionary rules apply to out-of-state evidence offered in a New Mexico prosecution. 5

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Does Article II, Section 10 apply to evidence seized by Texas officers? 6 New Mexico law governs evidence offered in New Mexico court; unlawful Texas search requires suppression. State constitutional rights follow the prosecution into New Mexico court. Yes; New Mexico law governs admissibility in New Mexico court. 7
Should Snyder and Cardenas-Alvarez control? 8 Those cases involved federal agents inside New Mexico and are distinguishable. Their reasoning extends to out-of-state officers too. Yes; their rationale is analogous and special concurrences are rejected. 9
Did Defendant consent to Texas law by entering Texas? 10 By entering Texas, Defendant accepted Texas law and procedures. Entering Texas does not waive New Mexico constitutional protections. No; jurisdictional consent is not consent to warrantless search or waiver. 11
Does applying Article II, Section 10 create impracticable results? 12 Suppressing out-of-state evidence will reward criminals and hinder prosecutions. Suppression only enforces constitutional rights in New Mexico court. No; suppression remains proper when evidence violates Article II, Section 10. 13

Key Cases Cited

  • State v. Snyder, 126 N.M. 168, 967 P.2d 843 (N.M. Ct. App. 1998) (New Mexico exclusionary rule applies in state court to federal checkpoint search evidence 14)
  • State v. Cardenas-Alvarez, 130 N.M. 386, 25 P.3d 225 (N.M. 2001) (evidence from federal agents must be suppressed in New Mexico court when obtained in violation of Article II, Section 10 15)
  • State v. Leyba, 123 N.M. 159, 935 P.2d 1171 (N.M. Ct. App. 1997) (suppression rulings reviewed for correct application of law and substantial evidence 16)
  • State v. Gutierrez, 116 N.M. 431, 863 P.2d 1052 (N.M. 1993) (excluding unconstitutional evidence best effectuates protections against unreasonable searches and seizures 17)
  • Miranda v. Arizona, 384 U.S. 436 (U.S. 1966) (Miranda warnings referenced in the suppression motion and order 18)
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Case Details

Case Name: State v. Causey
Court Name: New Mexico Supreme Court
Date Published: Jul 8, 2026
Citation: S-1-SC-40763
Docket Number: S-1-SC-40763
Court Abbreviation: N.M.
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    State v. Causey, S-1-SC-40763