Can new evidence be introduced in a trial?

Asked by: Miss Augusta Nolan MD  |  Last update: January 31, 2026
Score: 4.4/5 (68 votes)

Yes, you can introduce new evidence in a trial, but it's very difficult and usually requires showing it couldn't have been found earlier, often through post-trial motions or appeals, focusing on fraud, significant discovery, or emergencies, as trials generally don't allow new evidence after the main presentation, aiming for finality. The proper place for new evidence is the trial court; appeals review existing records, but some exceptions exist, requiring strict procedures and showing it impacts justice.

Can you introduce new evidence during a trial?

If new evidence arises during a trial, it must be disclosed promptly, and both civil and criminal cases have specific guidelines on how and when this must be done.

Can new evidence be presented in a retrial?

If the new evidence was not uncovered when it should have been, or it was not used in court by a defense attorney because of negligent legal defense, this new evidence may be grounds for a re-trial. Properly presenting this evidence affects the outcome of an appeal.

Can you be tried again with new evidence?

If you are found not guilty, the government cannot retry you for the same offense, even if new evidence surfaces later. Against a second prosecution after conviction. If you are convicted and sentenced, prosecutors cannot retry you for the same crime to seek harsher penalties.

Can new evidence be introduced during appeal?

In conclusion, while the desire to introduce new evidence on appeal is understandable, the general rule is that appellate courts will not consider it. Their focus is on reviewing the trial court's decisions for errors based on the record that was before it.

Can New Evidence Be Introduced On Appeal?

27 related questions found

Can you bring up new evidence in an appeal?

If the individual files an appeal with the latest evidence, it will not result in a successful appeal. The appellate court will review the trial record for legal errors, but it will not review new evidence.

Can you introduce new evidence on redirect?

Redirect is for the purpose of clarifying the direct examination and addressing issues raised on cross-examination; counsel is not entitled to repeat matters or bring out new matters on redirect examination. The trial judge may allow exceptions to this limitation if the circumstances require.

Can new evidence overturn a conviction?

Appeals are based on legal errors, not new evidence.

An appellate court only reviews the existing trial record for mistakes made by the judge, prosecutor, or criminal defense attorney; it does not re-evaluate the facts or hear new testimony.

What is the hardest criminal case to beat?

There's no single "hardest" case, but generally, homicide (especially first-degree), crimes against vulnerable victims (children, elderly), and sex crimes are incredibly tough due to high emotions, severe penalties, complex evidence, and potential jury bias, making them difficult to defend or prosecute effectively. Other challenging cases involve intricate white-collar crimes with complex financial evidence or highly sensitive matters like treason, which has a very high bar for proof. 

Is stacking charges legal?

The state will often stack criminal charges to strengthen the district attorney's case against you. This increases the likelihood of securing a guilty verdict, even if you are ultimately acquitted of one or more of the other charges against you.

What is a motion to reconsider with new evidence?

Motion for reconsideration

This motion requests the trial court to reconsider an order based on new facts, circumstances, or laws. You must file this motion within 10 days of being served with the written notice of entry of the order you want the court to reconsider.

What is considered new evidence?

New evidence is evidence not previously part of the actual record before agency adjudicators. Material evidence means existing evidence that, by itself or when considered with previous evidence of record, relates to an unestablished fact necessary to substantiate the claim.

What are the requirements for newly discovered evidence?

For the court to grant a new trial on ground of newly discovered evidence, the following requirements must be met: (1) the evidence was discovered after trial; (2) such evidence could not have been discovered and produced at the trial even with the exercise of reasonable diligence; (3) it is material, not merely ...

Can a case be reopened with new evidence?

To reopen a case based on new evidence, three key steps must be taken: File a motion with the court. Your attorney prepares a formal request explaining why reopening the case is necessary for justice to be served. Show you acted diligently.

How to introduce new evidence?

How to admit exhibits into evidence at a trial

  1. Show your exhibit to the other side and mark it. ...
  2. Have your witness identify your exhibits. ...
  3. Show the witness has first-hand knowledge of the exhibit. ...
  4. Ask the judge to admit the exhibit as evidence.

What to say when introducing evidence?

Submit your exhibits to the court by “moving” that they be admitted into evidence after you have explained the evidence by laying the proper foundation. A plaintiff may introduce an exhibit into evidence by saying something like, “Your Honor, I move that Plaintiff's Exhibit 'A' be introduced into evidence.”

Which lawyer wins most cases?

There's no single lawyer universally recognized for the most cases won, as records are hard to track and definitions vary, but Gerry Spence is famous for never losing a criminal case and a long civil win streak (until 2010), while Guyanese lawyer Sir Lionel Luckhoo holds a Guinness World Record for 245 successive murder acquittals, making them top contenders for different aspects of "most wins". 

What is the hardest thing to prove in court?

The hardest things to prove in court involve intent, causation (especially in medical cases where multiple factors exist), proving insanity, and overcoming the lack of physical evidence or uncooperative victims, often seen in sexual assault or domestic violence cases. Proving another person's mental state or linking a specific harm directly to negligence, rather than underlying conditions, requires strong expert testimony and overcoming common doubts. 

What felony is worse, C or D?

Class D felonies encompass offenses that still have considerable seriousness but are generally less impactful than those classified as Class A, B, or C. These crimes may involve lower levels of harm or smaller financial losses. They carry a maximum penalty of between 5 and 10 years in prison.

Who is more powerful, a judge or a jury?

Moreover, judges' fact-finding decisions are typically framed as “norm enforcement” and assumed to be more rational and objective than those of jurors.

Can a case be dismissed even with evidence?

In the state of California, it is never guaranteed that your case will get dismissed. Generally, cases are dismissed because there isn't enough evidence for the prosecution to continue the proceedings or because it's discovered that evidence was obtained illegally.

Can a judge reduce a jury's award?

Changing the Amount the Jury Awarded

If an award has no evidentiary support, it can be altered—lowered—or even raised, if the award was insufficient.

When can new evidence be introduced at trial?

Namely, courts consider whether the new evidence: (1) could not have been have obtained prior to the conclusion of the trial by the exercise of reasonable diligence; (2) is not merely corroborative or cumulative; (3) will not be used solely to impeach the credibility of a witness; and (4) would likely result in a ...

Who has more power than a prosecutor?

The defendant's risk to the community. Although the prosecutor makes a recommendation, the judge holds the ultimate power.

Can you get tried again with new evidence?

The Fourteenth Amendment's due process clause applies double jeopardy to the states, thereby protecting people charged with state crimes. In particular, a person acquitted of a crime cannot be prosecuted and tried again for that same crime, even if the prosecution finds more evidence implying guilt.