Date: Apr 16, 2026

Second Circuit: Plausible Fourth Amendment Firearms-Seizure Claim Survives § 1915(e) Screening; Implied Consent to Enter May Be Revoked

I. Introduction

In Campbell v. Broome County (2d Cir. Apr. 9, 2026), the Second Circuit reviewed the sua sponte dismissal—at the in forma pauperis screening stage under 28 U.S.C. § 1915(e)—of pro se plaintiff David John Campbell’s sprawling 42 U.S.C. § 1983 suit against Broome County, the City of Binghamton, and multiple officials and officers. Campbell’s allegations stemmed from conflicts surrounding firearms he claimed to be licensed to possess, culminating in police encounters in January 2023 and alleged seizures of guns and other property from his home.

The key appellate issues were (1) whether the district court properly dismissed the amended complaint as “factually frivolous” and for failure to state a claim, including for lack of personal involvement and lack of municipal policy; and (2) whether any component of the pleading nevertheless stated a viable Fourth Amendment claim that could not be screened out at inception.

II. Summary of the Opinion

The Second Circuit affirmed most of the dismissal, agreeing that large portions of the amended complaint were frivolous and that the pleading failed to allege (a) personal involvement of several individual defendants and (b) a municipal policy, custom, or practice sufficient for municipal liability.

However, the court vacated and remanded one discrete claim: Campbell’s Fourth Amendment claim against Binghamton police officer Nicholas Mushalla, based on allegations that Mushalla entered Campbell’s home on January 13, 2023, demanded firearms and ammunition, and seized “all” guns and other items without explaining or documenting anything. The court held those allegations were sufficient to state a § 1983 Fourth Amendment claim and should not have been dismissed as frivolous or for failure to state a claim at screening.

The court also declined to revive Campbell’s claims against Detective Bryan Sostowski relating to a January 14, 2023 incident, reasoning that those claims were foreclosed by the dismissal (affirmed the same day) of Campbell’s overlapping action against the City and Sostowski.

III. Analysis

A. Precedents Cited

1. Denton v. Hernandez

Denton v. Hernandez, 504 U.S. 25 (1992), supplied the controlling caution about the “factual frivolity” inquiry: a court may dismiss allegations that are “wholly incredible,” but should not dismiss “simply because the court finds the plaintiff’s allegations unlikely.” The Second Circuit invoked this principle to separate Campbell’s broad “conspiracy” narrative (deemed irrational) from the more concrete, plausibly unlawful search-and-seizure allegations directed at Mushalla.

2. Livingston v. Adirondack Beverage Co.

Livingston v. Adirondack Beverage Co., 141 F.3d 434 (2d Cir. 1998), was cited for two related propositions: (i) the Second Circuit has not issued a precedential opinion definitively selecting the standard of appellate review for factual frivolity under § 1915(e), and (ii) courts should not use the screening mechanism to reject plausible allegations merely because they seem improbable. The panel emphasized that, regardless of whether review is de novo or for abuse of discretion, the result was the same—except as to Mushalla.

3. Monell v. Department of Social Services

Monell v. Department of Social Services, 436 U.S. 658 (1978), framed the municipal-liability analysis. The Second Circuit agreed with dismissal of the claims against Broome County and the City of Binghamton because Campbell did not plead facts plausibly showing that a municipal policy, custom, or practice caused the alleged constitutional deprivation.

B. Legal Reasoning

1. § 1915(e) screening: “frivolous” vs. “fails to state a claim”

The opinion reinforces a disciplined approach to § 1915(e): courts must dismiss frivolous claims, but they must also avoid collapsing “frivolousness” into a merits-like credibility judgment when the complaint pleads a coherent constitutional violation. Here, even if many allegations suggested delusion or fantasy, the Mushalla episode was pleaded with enough specificity—entry into the home, weapon handling, demand for “the rest” of guns/ammo, and seizure without explanation/documentation—to cross the plausibility threshold for a Fourth Amendment claim.

2. Fourth Amendment theory against Mushalla: consent and reasonableness

The panel highlighted an important inference: although calling the police may imply limited consent for officers to approach and possibly enter in aid of the requested investigation, the complaint permitted an inference that any implied permission was withdrawn or narrowed when Campbell told Mushalla that “no one actually came into the home.” On that alleged record, Mushalla’s entry and seizure of firearms and other items could constitute an unreasonable search and seizure.

Critically, the court did not decide the ultimate Fourth Amendment merits; it held only that dismissal at screening was improper because the claim was neither inherently fantastic nor inadequately pleaded.

3. Personal involvement under § 1983

The Second Circuit agreed that the amended complaint failed to allege personal involvement by Harder, Hamilton, Kraham, Zikuski, and the Unknown New York State Trooper in any constitutional deprivation. It also found that Campbell’s allegations against Assistant District Attorney Lucas Finley did not plausibly plead knowing participation in wrongdoing; at most, Finley was described as receiving information from an officer.

4. Municipal liability under Monell

The court affirmed dismissal of municipal claims because Campbell did not connect the alleged misconduct to a municipal policy, custom, or practice. The decision thus reiterates that municipal defendants are not liable under § 1983 on a respondeat superior theory; plaintiffs must plead a policy-based causal link.

5. Foreclosure of claims against Sostowski due to overlapping litigation

While the opinion does not use a single doctrinal label, its logic is the familiar bar against duplicative litigation/claim preclusion: because Campbell’s earlier “Binghamton” action (naming Sostowski) was dismissed without leave to amend and that dismissal was affirmed, Campbell could not relitigate, in a separate action, claims “arising out of the same circumstances” that he made or could have made in the earlier case. This prevented reinstatement of the January 13–14 search-and-seizure claims against Sostowski in the Broome County case.

C. Impact

For district courts screening pro se IFP cases: even when a complaint contains delusional or irrational allegations, courts should isolate and preserve any independently plausible constitutional claim rather than dismiss wholesale as “factually frivolous.”
For Fourth Amendment litigation: the decision underscores that implied consent to police entry arising from a citizen’s call for assistance is not unlimited; pleadings can support an inference that consent was revoked or narrowed, making subsequent entry/seizure potentially unreasonable.
For § 1983 pleading practice: the ruling reiterates two frequent failure points—(i) personal involvement of each individual defendant and (ii) the policy/custom requirement for municipal liability under Monell.
For case management and preclusion: plaintiffs who file overlapping suits risk losing later attempts to repackage claims against the same defendants based on the same nucleus of facts once an earlier judgment has been entered and affirmed.

IV. Complex Concepts Simplified

In forma pauperis screening (28 U.S.C. § 1915(e)): When a plaintiff cannot afford filing fees and proceeds in forma pauperis, the court must screen the complaint and dismiss it if it is frivolous or fails to state a claim—before the defendants are served.
“Factual frivolity”: A claim may be dismissed as factually frivolous when allegations are clearly baseless—fantastic, delusional, or wholly incredible—not merely because they seem unlikely.
Personal involvement (individual liability under § 1983): A defendant is not liable just because of their job title or because they failed to respond to complaints. The complaint must plausibly allege that each individual defendant personally participated in (or caused) the constitutional violation.
Monell municipal liability: A city or county is liable under § 1983 only if a municipal policy, custom, or practice caused the violation. A single employee’s alleged misconduct is not enough without a policy-based link.
ERPO/TERPO: “Extreme Risk Protection Orders” and their temporary counterparts are court orders that can restrict firearm possession based on risk allegations. In this case, they served as part of Campbell’s narrative about how seizures were later justified.
Claim preclusion / duplicative litigation bar: Once a claim (or closely related set of claims) has been litigated to a final judgment, a plaintiff generally cannot bring another lawsuit against the same defendant over the same underlying events.

V. Conclusion

Campbell v. Broome County establishes a practical screening-stage rule with real bite: a pro se complaint rife with implausible conspiracy allegations may still contain a distinct, plausible Fourth Amendment search-and-seizure claim that must be allowed to proceed. The Second Circuit’s remand as to Officer Mushalla underscores that § 1915(e) is a filter for baselessness, not a license to reject plausible constitutional claims based on skepticism or the presence of other frivolous allegations. At the same time, the decision reaffirms core § 1983 constraints—personal involvement, Monell policy causation, and the bar against re-litigating claims already disposed of in overlapping suits.