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S.D.N.Y.Substantive rulingFiled Sept. 19, 2025

Barkai v. Culianos

Judge
Kenneth Karas
Docket
7:21-cv-04060
Court
U.S. District Court · Southern District of New York
Pages
24
Civil RightsSection 1983Summary JudgmentFirst Amendment
In one sentence

In Barkai v. Culianos, Judge Karas granted summary judgment to the defendants, denied Barkai’s motions, and entered judgment for defendants.

Who this affects

Ariel D. Barkai’s federal false-arrest and First Amendment retaliation claims were resolved against him; Anthony Culianos and Kyla Caraballo, identified as Officer Donegan, received summary judgment, and the case was closed.

What happened

Ariel D. Barkai sued Anthony Culianos and Kyla Caraballo, identified in the complaint as Officer Donegan, under a federal civil-rights law. He claimed the officers falsely arrested him during a mental-health welfare check and that Culianos retaliated against him for protected speech. Barkai represented himself, while the defendants had lawyers.

The court found that the officers had probable cause to detain Barkai because they knew about reported suicide threats, his prior mental-health incidents, his distress after his mother’s death, and his behavior at the scene. The court also said the officers at least had a reasonable basis for believing probable cause existed, which protected them from liability. Because probable cause defeated the retaliation claim as well, the court granted the defendants’ summary-judgment motion.

Judge Karas denied Barkai’s cross-motion and other motions, including his motion concerning the defendants’ expert, although the court said it did not need to address the expert motion because it did not rely on the expert’s report. The court declined to hear Barkai’s remaining state-law claim, entered judgment for the defendants, and closed the case.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
Barkai v. Culianos · No. 7:21-cv-04060
Judge
Kenneth Karas
Date
Sept. 19, 2025

Background

Ariel D. Barkai, representing himself, sued Anthony Culianos and Kyla Caraballo, identified in the complaint as Officer Donegan, under 42 U.S.C. § 1983. He asserted a false-arrest claim and a First Amendment retaliation claim. He also had a remaining state-law claim. The dispute arose from the officers’ August 31, 2020 response to a welfare-check request after dispatch received information that Barkai had threatened suicide.

Before the officers arrived, dispatch information stated that Barkai was considered an emotionally disturbed person, had blamed the District Attorney’s Office for “ruining his life,” and had said he was depressed and suicidal. The opinion also describes Barkai’s prior calls involving alleged suicide threats and Culianos’s earlier responses to some welfare checks involving Barkai. When Donegan arrived, Barkai was holding two phones and said he was on a $130 million call. He entered and exited his home several times, became increasingly upset, raised his voice, and told the officers to leave his property. The officers detained him and transported him to Nyack Hospital, where medical personnel described him as being in an acute or extreme manic state and presenting a substantial risk of harm.

Motions and legal standards

The defendants moved for summary judgment, which asks whether the evidence shows that no genuine dispute over an important fact requires a trial and that the moving party is entitled to judgment under the law. Barkai filed a cross-motion for summary judgment against Donegan and moved to exclude the defendants’ expert testimony under the evidence rule commonly called Daubert.

The court was required to view the evidence favorably to the party opposing summary judgment and to give special consideration to Barkai’s self-represented status. But the court explained that a self-represented litigant still must support his claims with evidence sufficient to create a genuine issue for trial.

False arrest

For a mental-health false-arrest claim under § 1983, the relevant question was whether the detention was privileged because the officers had probable cause. In this setting, probable cause exists when the facts known to the officers show a probability or substantial chance that the person poses a danger of serious physical harm to himself or others. A report of a suicide threat is important but generally is not enough by itself.

The court concluded that the undisputed facts, considered together, established probable cause under New York Mental Hygiene Law § 9.14. The facts included the reported suicide threat that day, Barkai’s history of mental-health incidents and threats against himself, information about his distress following his mother’s death, his repeated movement in and out of the house, his raised and commanding voice, his raised hands, and his statements about the $130 million call. The court said those facts created the required probability that Barkai was dangerous to himself.

The court rejected Barkai’s argument that the officers should have understood that his agitation resulted from being interrupted during a legitimate business call. The relevant question was whether the officers reasonably interpreted his conduct in light of the information available to them, not whether their interpretation was ultimately factually correct. The court also noted that medical observations later that day supported the reasonableness of the officers’ assessment, although those later observations were not the basis for what the officers knew at the time of the detention.

Alternatively, the court held that the officers had “arguable probable cause.” That means a reasonable officer could have believed probable cause existed, or reasonable officers could have disagreed about whether the legal standard was met. This alternative conclusion entitled the officers to qualified immunity, which generally protects government officials from damages when their conduct did not violate a clearly established legal right or was not plainly unreasonable.

The court therefore granted the defendants’ Motion for Summary Judgment on the false-arrest claim and denied Barkai’s Cross-Motion for Summary Judgment as to that claim.

First Amendment retaliation

Barkai also claimed that Culianos detained him in retaliation for protected speech. The court stated that such a claim requires protected speech or conduct, an adverse action, and a causal connection showing that the protected speech caused the adverse action.

Because the court had already found actual probable cause, or at least arguable probable cause, to detain Barkai, it concluded that the First Amendment retaliation claim failed. The court therefore granted summary judgment on that claim as well.

Expert motion and state-law claim

Barkai moved to strike the defendants’ expert report. Because the court granted summary judgment and did not rely on the expert report, it said it did not need to address the motion to strike. The opinion’s overall disposition states that Barkai’s motions were denied.

After granting summary judgment on the federal claims, the court declined to exercise supplemental jurisdiction over Barkai’s remaining state-law claim. Supplemental jurisdiction is the federal court’s authority to hear related state-law claims; the court declined to use that authority after resolving the federal claims.

Disposition

Judge Kenneth M. Karas granted the defendants’ Motion for Summary Judgment, denied Barkai’s motions, directed the Clerk of Court to enter judgment for the defendants, terminate the listed pending motions, close the case, and mail Barkai a copy of the opinion.

The authoritative version

Read the full 24-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

Open opinion PDF →
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