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The National Paralegal Center

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Overview of a CPL 440 Motions in New York Post Trial or Sentencing

CPL 440 Motion (Criminal Procedure Law Section 440)

A CPL 440 Motion (Criminal Procedure Law Section 440) is a legal mechanism in New York that allows individuals convicted of a crime to challenge the legality of their conviction or sentence after the appeal process has been exhausted. This motion is often used to address issues that could not be raised on direct appeal because the necessary facts were not part of the trial record. The motion seeks to vacate a judgment based on errors that occurred during trial or sentencing, such as ineffective assistance of counsel, newly discovered evidence, or prosecutorial misconduct.


A successful CPL 440 motion can result in a sentence reduction, a new trial, or in some cases, the complete vacating of the conviction, leading to freedom. However, it is a highly complex legal process that requires a detailed understanding of the law, thorough investigation, and the ability to present compelling evidence and arguments.


Common Grounds for Filing a CPL 440 Motion


  1. Ineffective Assistance of Counsel:
    • The defendant’s attorney did not provide competent legal representation, leading to an unjust conviction or sentence.
    • Examples of ineffective assistance of counsel may include failure to investigate key evidence, failure to interview witnesses, lack of preparation for trial, failure to file necessary motions, or errors in legal strategy that had a negative impact on the outcome.


Newly Discovered Evidence:

  • Evidence that was not available during the trial has been discovered, and this new evidence could change the outcome of the case.
  • An example might be finding exonerating forensic evidence, such as DNA that proves the defendant’s innocence, or discovering a new witness whose testimony was not available during the original trial.


Prosecutorial Misconduct:

  • The prosecutor engaged in improper conduct that impacted the fairness of the trial, such as withholding exculpatory evidence (evidence favorable to the defendant) or presenting false evidence.
  • For example, if the prosecutor fails to disclose witness statements that contradict their testimony, it could form the basis for a CPL 440 motion.


Improper Juror Conduct:

  • Jurors acted improperly during the trial, affecting the fairness of the proceedings. This could include juror bias, outside influence, or misconduct such as discussing the case outside of deliberations.


Unlawful Sentence:

  • The sentence imposed was illegal or unjust under the law. For instance, if a defendant was sentenced to a punishment not allowed under state law, this could be challenged under a CPL 440 motion.


Violation of Constitutional Rights:

  • Any violation of the defendant's state or federal constitutional rights during the trial process could serve as grounds for vacating the judgment.
  • Examples could include unlawful searches and seizures (Fourth Amendment violations), coerced confessions, or a denial of the right to a fair trial.

Situations Where CPL 440 Motions Are Often Filed

Wrongful Convictions and Post-Sentencing Appeals: CPL 440 Motions


Many individuals who believe they were wrongfully convicted utilize CPL 440 motions to present new evidence or challenge ineffective representation. For example, if a conviction was based on faulty forensic evidence, advancements in science could later prove the forensic analysis was flawed, paving the way for a successful CPL 440 motion.


Post-Sentencing Appeals
Defendants can seek relief through CPL 440 motions if new evidence arises after sentencing or legal errors are uncovered that were not part of the original appeal. For instance, someone convicted on drug charges may discover post-sentencing that the arresting officers had a history of misconduct, potentially invalidating their arrest and trial.


Exoneration Based on DNA Evidence
A common use of CPL 440 motions involves cases where newly tested DNA evidence exonerates the defendant or raises reasonable doubt about their guilt. This powerful tool can be key to overturning a wrongful conviction.


Cases of Misconduct
If evidence shows that the prosecutor knowingly used false testimony or withheld crucial evidence that could have exonerated the defendant, a CPL 440 motion may be filed to challenge the conviction. These motions are instrumental in cases of trial or sentencing errors, helping to correct injustices and potentially secure exoneration.


Filing a successful CPL 440 motion requires careful legal strategy and thorough understanding of trial errors or post-conviction evidence. Contact us to learn how we can assist you with your case.

CPL 440.10 - Motion to Vacate Judgment

CPL 440 Motions – Trial or Sentencing Support

This is the most commonly used section of the CPL 440 Motion. Under CPL 440.10, a defendant may move to vacate a judgment based on several specific legal grounds. Below is a list of all the subsections under CPL 440.10 and what they cover:

  • (1)(a): Lack of jurisdiction – The court did not have jurisdiction over the defendant or the offense.
  • (1)(b): Violation of rights at trial – The judgment was obtained in violation of the defendant’s constitutional rights, such as due process violations.
  • (1)(c): Newly discovered evidence – New evidence has emerged that could not have been discovered before or during the trial and could have changed the outcome.
  • (1)(d): Fraud or misrepresentation – The conviction was obtained through fraud, misrepresentation, or other illegal conduct.
  • (1)(e): Ineffective assistance of counsel – The defendant did not receive effective legal representation, which impacted the fairness of the trial.
  • (1)(f): Improper conduct by the prosecutor – The prosecutor committed misconduct, such as suppressing evidence that was favorable to the defense.
  • (1)(g): Legal invalidity of the judgment – The judgment was made in violation of the law (e.g., the trial court erred in applying the law).
  • (1)(h): DNA evidence – If DNA evidence shows that the defendant is not guilty, this subsection applies.
  • (1)(i): Constitutional violations – The conviction was obtained in violation of the defendant's constitutional rights.
  • (2)(a) – (c): Time Bar and Prior Judgments – These sections discuss whether a motion may be denied if the issue was or could have been raised in a prior appeal unless there are exceptional circumstances or the interests of justice demand a review.

For those seeking post-conviction relief based on trial or sentencing errors, filing a CPL 440 motion may be the key to success. Successful CPL 440 motions often rely on presenting these legal grounds effectively. Contact us to help you navigate this process

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