You are here: / / DEFENDANT ALLEGED HIS ATTORNEY DELIBERATELY WITHHELD IMPEACHMENT EVIDENCE...
, , ,

DEFENDANT ALLEGED HIS ATTORNEY DELIBERATELY WITHHELD IMPEACHMENT EVIDENCE ABOUT AN EXPERT WITNESS WHEN HIS ATTORNEY PERSUADED HIM TO HIRE THE EXPERT; BECAUSE OF THE IMPORTANCE OF THE EXPERT’S TESTIMONY, A HEARING ON DEFENDANT’S MOTION TO VACATE HIS CONVICTION ON INEFFECTIVE-ASSISTANCE GROUNDS SHOULD HAVE BEEN HELD; MATTER REMITTED (THIRD DEPT).

The Third Department, reversing County Court, determined County Court should have held a hearing on defendant’s motion to vacate the judgment of conviction on ineffective-assistance grounds. Defendant alleged his attorney, Mary Rain, deliberately withheld impeachment information about an expert witness, Baerthlein, when persuading defendant to hire the expert:

… [D]efendant’s claim is that Rain was ineffective because she deliberately withheld impeachment evidence about Baerthlein when she persuaded defendant to hire him as an expert and the sole defense witness; that same impeachment evidence was ultimately used to vitiate Rain’s chosen defense; and that defendant would not have retained Baerthlein if Rain had disclosed the evidence in the first place. Given the central importance of Baerthlein’s credibility — particularly “in a case such as this, where casting doubt on the prosecution’s medical proof is the crux of the defense” … — Rain’s alleged failures, if true, were not the product of a legitimate but ill-advised trial strategy … . People v Thornton, 2026 NY Slip Op 03699, Third Dept 6-11-26

Practice Point: Here the allegation defense counsel deliberately withheld impeachment evidence about an expert witness while persuading defendant to hire the expert raised a factual question which required a hearing re: defendant’s motion to vacate his conviction on ineffective-assistance grounds.

 

You might also like
In a Lead-Paint-Injury Case, Non-party Medical Records Not Discoverable (Re: Plaintiff’s Mother and Siblings)–Non-party Academic Records Should Be Submitted for In Camera Review–Mother Cannot Be Compelled to Submit to an IQ Test
Evidence of Loss Based Upon Interference with Property Owner’s Ability to Extract Gas by Hydrofracking Disallowed as Speculative
CLAIMANT, A HAIRCARE PRODUCT SALES REPRESENTATIVE, WAS NOT AN EMPLOYEE OF THE PRODUCER OF THE HAIRCARE PRODUCTS AND THEREFORE WAS NOT ENTITLED TO UNEMPLOYMENT INSURANCE BENEFITS (THIRD DEPT). ​
IT WAS AN ABUSE OF DISCRETION TO STRIKE PLAINTIFF’S COMPLAINT BASED UPON AN ALLEGED FAILURE TO COMPLY WITH COURT-ORDERED DISCOVERY (THIRD DEPT). ​
County Court Should Have Ordered a Hearing Re: Defendant’s 440 Motion to Vacate His Conviction—There Was Evidence Outside the Record that Required Development—Defendant Suffered from a Mental Illness and Was Taking Medications which May Have Affected His Judgment at the Time of the Plea Proceedings
Sex Offender Status Not Enough to Support Neglect Finding
Driver Who Had Right of Way But Allowed Another Driver to Turn Can Be Liable to Motorist Struck by Turning Car​
PROVISION OF THE EDUCATION LAW WHICH ALLOWS THE APPOINTMENT OF A RECEIVER TO TAKE OVER ALLEGEDLY FAILING SCHOOLS DOES NOT VIOLATE THE CONTRACT CLAUSE OF THE US CONSTITUTION (THIRD DEPT).

Categories

Sign Up for the Mailing List to Be Notified When the Site Is Updated.

  • This field is for validation purposes and should be left unchanged.

Copyright © 2026 New York Appellate Digest, Inc.
Site by CurlyHost | Privacy Policy

DEFENDANT HAD SUFFICIENT CONTACTS WITH NEW YORK TO ALLOW THIS BREACH OF CONTRACT... PETITIONER ALLEGED EMPLOYMENT DISCRIMINATION BASED LARGELY ON THE EMPLOYER’S...