9th Cir.

Brown v. Tromba, et al.

May 29, 2026 ·2:17-cv-02396-APG-BNW ·Unpublished · By Aisha Johnson

The Ninth Circuit affirmed the dismissal of a pro se civil rights action brought by a state prisoner regarding his pretrial detention. The panel unanimously concluded that the district court properly dismissed claims for false arrest, judicial deception, equal protection violations, and municipal liability.

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Background

Marlon Lorenzo Brown, a Nevada state prisoner, appealed pro se from a district court judgment dismissing his action under Section nineteen eighty-three of Title forty-two of the United States Code. The lawsuit challenged his pretrial detention and included claims against various defendants including law enforcement officers, the Las Vegas Metropolitan Police Department, and Clark County.

The court’s reasoning

The panel reviewed the district court’s dismissal de novo. The court held that the Fourth Amendment false arrest claim was properly dismissed because the plaintiff did not allege the violation of any clearly established rights. The judicial deception claim was barred by Heck v. Humphrey since the plaintiff conceded that success would imply the invalidity of his conviction without demonstrating such invalidation. The equal protection claim failed because the plaintiff did not allege facts showing intentional differential treatment without a rational basis. Municipal liability claims were dismissed for failure to allege a constitutional violation resulting from official policy or custom. State law negligent hiring and supervision claims were barred by discretionary immunity under Nevada law. The court also affirmed the denial of motions for summary judgment, reconsideration, and sanctions.

What it means going forward

The decision reinforces the high bar for pro se plaintiffs in civil rights cases involving pretrial detention, particularly regarding the requirement to plead clearly established rights and the Heck bar for claims challenging the validity of a conviction.

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