Category: Law Enforcement Expert Witness
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Law Enforcement Expert’s Testimony on the Use of Pepper Spray Limited
Plaintiff LaBlanca Sibley’s excessive force claim against Officer Nicholas S. Riggall, arising from her arrest and detention, was based on Riggall’s use of pepper spray while she was seated in the patrol car. Sibley retained Mr. Jeronimo Rodriguez, an expert in law enforcement practices and use-of-force standards. Riggall moved to exclude Rodriguez’s opinions and testimony.…
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Law Enforcement Expert’s Testimony on Workplace Dynamics Admitted
Solangie Acosta was a Muskegon Heights Police Department(“MHPD”) law enforcement officer between 2017 and 2022 who brought nine claims against her former employer, alleging discrimination on the basis of sex, disability status, and an exercise of her worker’s compensation rights. Defendants filed a motion to preclude testimony by Acosta’s expert Wendy Patrick, a former prosecutor…
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Law Enforcement Expert’s Testimony on Tunnel Vision Excluded
Eric Kelley contended that he was wrongfully incarcerated for a 1993 murder and robbery for 24 years until DNA testing provided a basis for the trial court to vacate his convictions, and the State declined to retry him, Kelley then sued several members of the Paterson Police Department (“PPD”) who allegedly violated his constitutional rights…
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The Law Enforcement Expert Was Allowed to Opine on Pennsylvania State Police Policy
The Defendants are Pennsylvania State Police Troopers accused of using excessive force when they served a 302 warrant on Plaintiff Carl Giuli based on his wife’s reports that Giuli was experiencing a mental health crisis. While serving the warrant, an altercation occurred in Giuli’s house involving Giuli and Pennsylvania State Police Troopers Joseph Montagna and…
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Law Enforcement Expert Was Not Allowed to Opine on the Party’s Intent
Plaintiff Deborah Jones-MacDonald brought this civil rights action against Defendants, Harris County Sheriff’s Office (“HCSO”) Deputies Ronaldo Delgado and Charles Ribbe (collectively, “the Deputies”), alleging that she suffered personal injuries as a result of an August 13, 2021 encounter with the Deputies. Plaintiff sought to exclude the report of the Deputies’ expert, Michael A. Dirden,…
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Law Enforcement Expert Was Allowed to Opine on the Standard Practices Involving Police Canines
In this excessive force case involving a police canine, Plaintiff Herman Evans (“Evans”) filed a motion to exclude the opinion of The City of Lynchburg’s (“City”) expert witness—Jeffrey T. Barrett (“Barrett”). Barrett offered four opinions (although the confines of those opinions are not as clearly defined as they should be). First, he reviewed the training…
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Law Enforcement Expert Was Not Allowed to Opine on Trafficking at Hotels
This case arises under the Trafficking Victims Protection Reauthorization Act (TVPRA), which provides victims of sex trafficking a civil remedy against the perpetrators and beneficiaries of their trafficking. Plaintiff C.L.F. filed this action to recover for alleged harm she experienced from being trafficked at a Motel 6 in Wichita, Kansas, that she claims was owned…
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Law Enforcement Expert Allowed to Opine on the Reactionary Gap
This suit involves the unnecessary use of excessive force by police officers against a black man suffering from a mental health crisis. On November 21, 2021, during a mental health crisis, Jabari Asante-Chioke encountered Louisiana State Police (“LSP”) Officer Nicholas Dowdle and East Jefferson Levee District (“EJLD”) Officers Jonathon Downing and Gerard Duplessis (collectively referred…
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Law Enforcement Expert Was Allowed to Opine on the Dynamics of Sex Trafficking
Johnson is charged with three counts relating to sex trafficking or transportation of a minor for purposes of engaging in sexual activity: sex trafficking of a minor, coercion and enticement of a minor to engage in sexual activity, and interstate transportation of a minor for criminal sexual activity. On October 3, 2025, the government notified…
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Law Enforcement Expert’s Testimony on Reasonable Suspicion Excluded
Plaintiff Shelby Ross asserted a Fourth Amendment unreasonable search and seizure claim against Defendant Jeremy Finney. In addition, Plaintiff asserted state law claims of assault and battery against Finney. Against Tipton County, Plaintiff averred “negligent failure to protect”/“negligent failure to prevent” claims under Tennessee law. Ross hired Roy G. Taylor as an expert witness in…
