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Scope of cross-examination
Procedural Issues

Scope of cross-examination

By Jason Tenenbaum 8 min read

Key Takeaway

Court of Appeals framework for cross-examining medical professionals on prior bad acts, criminal conduct, and credibility issues in New York litigation.

This article is part of our ongoing procedural issues coverage, with 186 published articles analyzing procedural issues issues across New York State. Attorney Jason Tenenbaum brings 24+ years of hands-on experience to this analysis, drawing from his work on more than 1,000 appeals, over 100,000 no-fault cases, and recovery of over $100 million for clients throughout Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx. For personalized legal advice about how these principles apply to your specific situation, contact our Long Island office at (516) 750-0595 for a free consultation.

People v Smith, 2016 NY Slip Op 05061 (2016)

We often cross-examine medical professionals with all sorts of backgrounds.  Some have OPMC issues, some have criminal issues, some have been sued in medical malpractice cases.  The question has always been how much into what could be considered “collateral” matters can an attorney go into with a witness that has the above issues.  My view is as much as the Court allows, and the Court of Appeals has set forth an interesting framework that you should be aware of  when you go head to head with a professional witness.

“Given these central principles, prosecution witnesses — and indeed, even a testifying defendant — may be cross-examined on “prior specific criminal, vicious or immoral [*3]conduct,” provided that “the nature of such conduct or the circumstances in which it occurred bear logically and reasonably on the issue of credibility” (People v Sandoval, 34 NY2d 371, 376 ). Of course, where a witness other than the defendant testifies, the court, in considering the parameters of permissible cross-examination, is not focused on protecting the rights of the accused, and on the concern that permitting evidence of bad conduct will serve merely to demonstrate a propensity to commit the crime charged (see People v Ocasio, 47 NY2d 55, 58 ). After all, for a nondefendant witness, “neither conviction nor vindication, imprisonment nor freedom, hangs in the balance” (id. at 59). However, in all cases the trial court retains broad discretion to weigh the probative value of evidence of prior bad acts against the possibility that it “would confuse the main issue and mislead the jury … or create substantial danger of undue prejudice to one of the parties”(People v Corby, 6 NY3d 231, 234-235 ; see also People v Harrell, 209 AD2d 160, 160 , affd 86 NY2d 806 ; see generally People v Dawson, 50 NY2d 311, 322 ; People v Gissendanner, 48 NY2d at 548 ; Sandoval, 34 NY2d at 374 [“(t)he nature and extent of cross-examination have always been subject to the sound discretion of the Trial Judge”]).

In Garrett, we concluded that “civil allegations” of misconduct in a federal lawsuit filed against a law enforcement agent “were favorable to defendant as impeachment evidence” (Garrett, 23 NY3d at 886), thereby necessarily determining that such allegations can bear on a law enforcement officer’s credibility as a witness. The defendant in Garrett argued in his criminal case that one detective in particular “coerced him into making a false confession” and “he federal complaint made similar allegations against : although it did not explicitly allege that the confession procured was false, the complaint described coercive tactics allegedly used to extract a confession against the plaintiff’s will” (id.). This Court noted that the evidence “favored defendant’s false confession theory” in that case (id.). Nonetheless, in Garrett, we noted that the trial judge could have exercised discretion and precluded inquiry into this “favorable” impeachment evidence (id. at 892).

Our recognition of the relevance of prior bad acts that have been alleged in court filings, but not proven at trial, is consistent with our precedent; we have previously decided that there is no prohibition against cross-examining a witness about bad acts that have never been formally proven at a trial (see People v Sorge, 301 NY 198, 201 ). Likewise, a police witness’s prior bad act that similarly has not been proven in a criminal prosecution or other court proceeding also can be proper fodder for cross-examination. Nor do allegations of police misconduct lose their relevance to a police witness’s credibility simply because the alleged bad acts are not regarded in all cases as criminal or immoral. Indeed, we have approved cross-examination on a defendant’s use of aliases and other suspect, but not criminal, conduct because”even where the proof falls outside the conventional category of immoral, vicious or criminal [*4]acts, it may be a proper subject for impeachment questioning where it demonstrates an untruthful bent or significantly reveals a willingness … to place the advancement of his individual self-interest ahead of principle or of the interests of society.” Walker, 83 NY2d at 461 ).

As we indicated in Garrett, and emphasize here, law enforcement witnesses should be treated in the same manner as any other witness for purposes of cross-examination. The same standard for good faith basis and specific allegations relevant to credibility applies — as does the same broad latitude to preclude or limit cross-examination.

Where a lawsuit has not resulted in an adverse finding against a police officer, as is the case with these three appeals, defendants should not be permitted to ask a witness if he or she has been sued, if the case was settled (unless there was an admission of wrongdoing) or if the criminal charges related to the plaintiffs in those actions were dismissed. However, subject to the trial court’s discretion, defendants should be permitted to ask questions based on the specific allegations of the lawsuit if the allegations are relevant to the credibility of the witness.

From the above, the logical framework for analysis of the issue is clear. First, counsel must present a good faith basis for inquiring, namely the lawsuit relied upon; second, specific allegations that are relevant to the credibility of the law enforcement witness must be identified; and third, the trial judge exercises discretion in assessing whether inquiry into such allegations would confuse or mislead the jury, or create a substantial risk of undue prejudice to the parties (see Delaware v Van Arsdall, 475 US 673, 679 ; see People v Harrell, 209 AD2d 160, 160 ).

A federal lawsuit alleging tortious conduct committed by law enforcement officials testifying as prosecution witnesses, provides an appropriate good faith basis for raising the issue. Even so, the specific allegations must be relevant to that witness’s credibility (see People v Garrett, supra; People v Daley, supra ; People v Jones, supra police witness about allegations in lawsuits of police brutality, false arrest and excessive force]); compare Andrew, supra at 618 detective personally engaged in any specific misconduct or acted with knowledge of the misconduct of other officers.”]).

Nevertheless, whether to permit inquiry into such prior bad acts for impeachment purposes are discretionary calls “for the trial courts and fact-reviewing intermediate courts, and … generally no further review by this Court is warranted” (People v Walker, 83 NY2d at 458 ). “Because the trial courts have inherent power to control the scope of cross-examination and the use of prior bad acts is a generically accepted practice in that context, this Court will only intervene where the trial court ha either abused its discretion or exercised none at all (id. at 459 ).

Applying those principles to these cases, we hold that the trial courts in Ingram and McGhee abused their discretion and effectively imposed an improper categorical prohibition against permissible cross-examination, although that error was harmless in McGhee. While it is a closer question with respect to Smith, any error in that case was likewise harmless.”

Legal Context

Why This Matters for Your Case

New York law is among the most complex and nuanced in the country, with distinct procedural rules, substantive doctrines, and court systems that differ significantly from other jurisdictions. The Civil Practice Law and Rules (CPLR) governs every stage of civil litigation, from service of process through trial and appeal. The Appellate Division, Appellate Term, and Court of Appeals create a rich and ever-evolving body of case law that practitioners must follow.

Attorney Jason Tenenbaum has practiced across these areas for over 24 years, writing more than 1,000 appellate briefs and publishing over 2,353 legal articles that attorneys and clients rely on for guidance. The analysis in this article reflects real courtroom experience — from motion practice in Civil Court and Supreme Court to oral arguments before the Appellate Division — and a deep understanding of how New York courts actually apply the law in practice.

About This Topic

Procedural Issues in New York Litigation

New York civil procedure governs every stage of litigation — from pleading requirements and service of process to motion practice, discovery deadlines, and trial procedures. The CPLR creates strict procedural rules that can make or break a case regardless of the underlying merits. These articles examine the procedural pitfalls, timing requirements, and strategic considerations that practitioners face in New York state courts, with a particular focus on no-fault insurance and personal injury practice.

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Common Questions

Frequently Asked Questions

What are common procedural defenses in New York no-fault litigation?

Common procedural defenses include untimely denial of claims (insurers must issue denials within 30 days under 11 NYCRR §65-3.8(c)), failure to properly schedule EUOs or IMEs, defective service of process, and failure to comply with verification request requirements. Procedural compliance is critical because courts strictly enforce these requirements, and a single procedural misstep by the insurer can result in the denial being overturned.

What is the CPLR and how does it affect my case?

The New York Civil Practice Law and Rules (CPLR) is the primary procedural statute governing civil litigation in New York state courts. It covers everything from service of process (CPLR 308) and motion practice (CPLR 2214) to discovery (CPLR 3101-3140), statute of limitations (CPLR 213-214), and judgments. Understanding and complying with CPLR requirements is essential for successful litigation.

What is the 30-day rule for no-fault claim denials?

Under 11 NYCRR §65-3.8(c), an insurer must pay or deny a no-fault claim within 30 calendar days of receiving proof of claim — or within 30 days of receiving requested verification. Failure to issue a timely denial precludes the insurer from asserting most defenses, including lack of medical necessity. This 30-day rule is strictly enforced by New York courts and is a critical defense for providers and claimants.

How does improper service of process affect a no-fault lawsuit?

Improper service under CPLR 308 can result in dismissal of a case for lack of personal jurisdiction. In no-fault collection actions, proper service on insurers typically requires serving the Superintendent of Financial Services under Insurance Law §1212. If service is defective, the defendant can move to dismiss under CPLR 3211(a)(8), and any default judgment obtained on defective service may be vacated.

What is a condition precedent in no-fault insurance?

A condition precedent is a requirement that must be satisfied before a party's obligation arises. In no-fault practice, claimant conditions precedent include timely filing claims, appearing for EUOs and IMEs, and responding to verification requests. Insurer conditions precedent include timely denying claims and properly scheduling examinations. Failure to satisfy a condition precedent can be dispositive — an untimely denial waives the insurer's right to contest the claim.

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Attorney Jason Tenenbaum

About the Author

Jason Tenenbaum, Esq.

Jason Tenenbaum is the founding attorney of the Law Office of Jason Tenenbaum, P.C., headquartered at 326 Walt Whitman Road, Suite C, Huntington Station, New York 11746. With over 24 years of experience since founding the firm in 2002, Jason has written more than 1,000 appeals, handled over 100,000 no-fault insurance cases, and recovered over $100 million for clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, the Bronx, and Staten Island. He is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.

Jason is admitted to practice in New York, New Jersey, Florida, Texas, Georgia, and Michigan state courts, as well as multiple federal courts. His 2,353+ published legal articles analyzing New York case law, procedural developments, and litigation strategy make him one of the most prolific legal commentators in the state. He earned his Juris Doctor from Syracuse University College of Law.

24+ years in practice 1,000+ appeals written 100K+ no-fault cases $100M+ recovered

Disclaimer: This article is published by the Law Office of Jason Tenenbaum, P.C. for informational and educational purposes only. It does not constitute legal advice, and no attorney-client relationship is formed by reading this content. The legal principles discussed may not apply to your specific situation, and the law may have changed since this article was last updated.

New York law varies by jurisdiction — court decisions in one Appellate Division department may not be followed in another, and local court rules in Nassau County Supreme Court differ from those in Suffolk County Supreme Court, Kings County Civil Court, or Queens County Supreme Court. The Appellate Division, Second Department (which covers Long Island, Brooklyn, Queens, and Staten Island) and the Appellate Term (which hears appeals from lower courts) each have distinct procedural requirements and precedents that affect litigation strategy.

If you need legal help with a procedural issues matter, contact our office at (516) 750-0595 for a free consultation. We serve clients throughout Long Island (Huntington, Babylon, Islip, Brookhaven, Smithtown, Riverhead, Southampton, East Hampton), Nassau County (Hempstead, Garden City, Mineola, Great Neck, Manhasset, Freeport, Long Beach, Rockville Centre, Valley Stream, Westbury, Hicksville, Massapequa), Suffolk County (Hauppauge, Deer Park, Bay Shore, Central Islip, Patchogue, Brentwood), Queens, Brooklyn, Manhattan, the Bronx, Staten Island, and Westchester County. Prior results do not guarantee a similar outcome.

Filed under: Procedural Issues
Jason Tenenbaum, Personal Injury Attorney serving Long Island, Nassau County and Suffolk County

About the Author

Jason Tenenbaum

Jason Tenenbaum is a personal injury attorney serving Long Island, Nassau & Suffolk Counties, and New York City. Admitted to practice in NY, NJ, FL, TX, GA, MI, and Federal courts, Jason is one of the few attorneys who writes his own appeals and tries his own cases. Since 2002, he has authored over 2,353 articles on no-fault insurance law, personal injury, and employment law — a resource other attorneys rely on to stay current on New York appellate decisions.

Education
Syracuse University College of Law
Experience
24+ Years
Articles
2,353+ Published
Licensed In
7 States + Federal

Discussion

Comments (5)

Archived from the original blog discussion.

Z
zuppa
How come when i crossed an ime doctor who took a guilty plea in the infamous boris case — one of the very very few — the court cut me off as the “expert” started to cry. over there in good ole queens civil And i lost … he committed fraud which goes to credibility its a conviction not a prior bad act. And he was an expert which allows broad cross examination i think the court just wanted the insurance company to win just a hunch
AK
Alan Klaus
I made a claim rep cry in Civ Qns once. The judge didn’t care at all and it was funny in the same case after I crossed their expert IME DR He Told mE I DID a GREAT Job. I won the case! 🙂
Z
zuppa
I think the judge didn’t like me. No one likes me. Jason used to like me.
J
Jason
Ray, I still love you. Call me this week when you get a chance. Jt
RZ
raymond zuppa
Will call tomorrow. sorry out of the loop for a couple of weeks. i love you sun …

Legal Resources

Understanding New York Procedural Issues Law

New York has a unique legal landscape that affects how procedural issues cases are litigated and resolved. The state's court system includes the Civil Court (for claims up to $25,000), the Supreme Court (the primary trial court for unlimited jurisdiction), the Appellate Term (which hears appeals from lower courts), the Appellate Division (divided into four Departments, with the Second Department covering Long Island, Brooklyn, Queens, Staten Island, and several upstate counties), and the Court of Appeals (the state's highest court). Each court has its own procedural requirements, local rules, and case-assignment practices that can significantly impact the outcome of your case.

For procedural issues matters on Long Island, cases are typically filed in Nassau County Supreme Court (at the courthouse in Mineola) or Suffolk County Supreme Court (in Riverhead). No-fault arbitrations are heard through the American Arbitration Association, which assigns arbitrators throughout the metropolitan area. Workers' compensation claims go to the Workers' Compensation Board, with hearings at district offices across the state. Understanding which forum is appropriate for your case — and the specific procedural rules that apply — is essential for a successful outcome.

The procedural landscape in New York also includes important timing requirements that can affect your case. Most civil actions are subject to statutes of limitations ranging from one year (for intentional torts and claims against municipalities) to six years (for contract actions). Personal injury cases generally have a three-year deadline under CPLR 214(5), while medical malpractice claims must be filed within two and a half years under CPLR 214-a. No-fault insurance claims have their own regulatory deadlines, including 30-day filing requirements for applications and 45-day deadlines for provider claims. Understanding and complying with these deadlines is critical — missing a filing deadline can permanently bar your claim, regardless of how strong your case may be on the merits.

Attorney Jason Tenenbaum regularly practices in all of these venues. His office at 326 Walt Whitman Road, Suite C, Huntington Station, NY 11746, is centrally located on Long Island, providing convenient access to courts and offices throughout Nassau County, Suffolk County, and New York City. Whether you need representation in a no-fault arbitration, a personal injury trial, an employment discrimination hearing, or an appeal to the Appellate Division, the Law Office of Jason Tenenbaum, P.C. brings $24+ years of real courtroom experience to your case. If you have questions about the legal issues discussed in this article, call (516) 750-0595 for a free, no-obligation consultation.

New York's substantive law also presents distinct challenges. In motor vehicle cases, the no-fault system under Insurance Law Article 51 provides first-party benefits regardless of fault, but limits the right to sue for non-economic damages unless the plaintiff establishes a "serious injury" under one of nine statutory categories. This threshold — codified at Insurance Law Section 5102(d) — requires medical evidence showing more than a minor or subjective injury, and courts have developed detailed standards for each category. Fractures must be documented through imaging studies. Claims of permanent consequential limitation or significant limitation of use require quantified range-of-motion testing with comparison to norms. The 90/180-day category demands proof that the plaintiff was unable to perform substantially all of their usual daily activities for at least 90 of the 180 days following the accident.

In employment discrimination cases, the legal standards vary depending on whether the claim arises under state or local law. The New York State Human Rights Law employs a burden-shifting framework: the plaintiff must first establish a prima facie case by showing membership in a protected class, qualification for the position, an adverse employment action, and circumstances giving rise to an inference of discrimination. The burden then shifts to the employer to articulate a legitimate, non-discriminatory reason for its decision. If the employer meets this burden, the plaintiff must demonstrate that the stated reason is pretextual. The New York City Human Rights Law, by contrast, applies a broader standard, asking whether the plaintiff was treated less well than other employees because of a protected characteristic.

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