## Facts

- Mississippi police applied for a warrant to search Jerry McCommon’s automobile for drugs.
- A judge issued the warrant, and officers searched the car and found a large quantity of marijuana in the trunk.
- McCommon moved to suppress, arguing the warrant lacked probable cause and was not issued by a neutral and detached magistrate.
- At the suppression hearing, the issuing judge testified that he viewed his role as helping law enforcement and largely relied on his assumption that officers acted in good faith, rather than independently assessing probable cause.
- The trial court denied suppression and McCommon was convicted.
- The Mississippi Supreme Court affirmed, concluding the warrant was supported by probable cause and the judge’s conduct, though “not ideal,” satisfied neutrality and detachment requirements.
- The U.S. Supreme Court denied certiorari; Justice Brennan, joined by Justice Marshall, dissented from the denial.

## Issues

1. What is the legal effect of the U.S. Supreme Court’s denial of certiorari on the state court judgment upholding the search and conviction?
2. Whether a warrant satisfies the Fourth Amendment’s “neutral and detached magistrate” requirement when the issuing judge views his duty as assisting police and effectively rubber-stamps warrant requests.  
3. Whether evidence obtained under such a warrant should be suppressed for lack of independent judicial control over probable-cause determinations.

## Decision

- The U.S. Supreme Court denied certiorari, leaving the Mississippi Supreme Court’s affirmance of the conviction in place.
- No merits decision was issued by the Court on the Fourth Amendment questions presented.
- Justice Brennan (joined by Justice Marshall) dissented, stating the record showed the issuing judge “indisputably” rubber-stamped the police request and that the case warranted review.

## Legal Principles

- A denial of certiorari is not a decision on the merits and does not establish Supreme Court precedent; it leaves the lower-court judgment undisturbed.
- The Fourth Amendment requires that probable cause for a warrant be determined by a neutral and detached magistrate, not by officers engaged in law enforcement.
- Neutrality and detachment require severance from law-enforcement activities; a magistrate may not serve as a mere rubber stamp for police.
- Where a warrant is issued without genuine independent judicial assessment, suppression may be required because the warrant process fails to provide the Fourth Amendment’s procedural safeguard.

## Conclusion

The Supreme Court’s denial of certiorari left standing a state-court ruling that upheld a vehicle-search warrant despite the issuing judge’s testimony suggesting deference to police; the only Supreme Court writing was a dissent arguing that such rubber-stamping is incompatible with the Fourth Amendment’s neutral-and-detached-magistrate requirement.


McCommon v. Mississippi, 474 U.S. 984 (1985)