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What Are the Key Grounds for Filing a Successful Criminal Appeal?

Wolfe Law Group Sept. 18, 2025

When someone is convicted of a crime in Ohio, the case doesn’t necessarily end with the trial. There is still an opportunity to challenge the conviction or the sentence through a criminal appeal. Appeals serve as an essential part of the justice system, giving individuals the right to seek review when legal errors may have affected the outcome of their case.

A criminal appeal isn’t a new trial. Instead, it’s a request for a higher court to examine the decisions made by the trial court. The focus is typically on whether legal mistakes were made that had a significant impact on the verdict or sentence. Filing an appeal requires precise legal arguments, strict adherence to procedures, and strong written briefs.

Whether you're exploring your options or preparing to challenge a conviction, understanding the appeal process is a powerful first step. Contact Wolfe Law Group today to discuss your case and take the next step toward a stronger future.

How Criminal Appeals Work in Ohio

Before examining the grounds for appeal, it’s helpful to understand what a criminal appeal is—and what it isn’t.

What an Appeal Is

An appeal is a legal process where a higher court reviews the record of a trial to decide if legal errors were made. The appellate court doesn’t hear new evidence, call witnesses, or retry the case. It focuses strictly on the proceedings of the original trial and how the law was applied.

The Appeal Process

In Ohio, the process typically begins by filing a notice of appeal with the appropriate appellate court. After that, both sides file written briefs that explain their positions. In some cases, oral arguments may be scheduled, but most decisions are made based on the written submissions and trial transcripts.

The appeals process follows strict deadlines and procedural rules, making it essential for the appellant and their criminal defense counsel to act promptly and carefully.

Common Grounds for Filing a Criminal Appeal

Not every unfavorable verdict is eligible for appeal. A valid criminal appeal must be based on specific legal grounds. Below are the most common reasons that can justify a higher court's review.

Legal Errors Made During Trial

One of the most frequently cited grounds for appeal is that the trial court made legal errors that impacted the outcome of the case.

Legal errors can include:

  • Incorrect jury instructions

  • Improper admission or exclusion of evidence

  • Misapplication of the law

  • Denial of motions that should have been granted

For example, if the judge allowed evidence that should have been excluded due to constitutional protections or state rules of evidence, that could provide strong grounds for an appeal.

Ineffective Assistance of Counsel

The U.S. Constitution guarantees the right to effective legal representation. If a defense attorney’s performance falls so far below professional standards that it affects the outcome of the case, this can be a valid reason to appeal.

The court looks at two key factors:

  1. Whether the attorney’s performance was objectively deficient.

  2. Whether there’s a reasonable probability that, but for the attorney’s mistakes, the result of the trial would have been different.

Examples include failing to investigate key facts, neglecting to call important witnesses, or not filing critical pretrial motions. An appellate court must find both poor performance and prejudice to the defendant for this claim to succeed.

Prosecutorial Misconduct

While prosecutors are charged with pursuing justice, they’re not allowed to bend or break the rules to secure convictions. If a prosecutor engages in misconduct, it may provide grounds for an appeal.

Common forms of misconduct include:

  • Withholding exculpatory evidence (Brady violations)

  • Making improper statements during closing arguments

  • Presenting knowingly false testimony

  • Misleading the jury or court

For the appeal to succeed, the misconduct must have affected the defendant’s right to a fair trial.

Juror Misconduct

Jurors are expected to follow the court’s instructions, remain impartial, and base their decisions solely on the evidence presented during trial. If a juror violates these duties, it can be grounds for reversal.

Types of juror misconduct might include:

  • Conducting outside research

  • Discussing the case with non-jurors

  • Using social media to comment on the trial

  • Failing to disclose bias during jury selection

If such behavior occurred and it likely influenced the outcome, an appellate court may overturn the conviction.

Sentencing Errors

A separate but important part of the criminal process is sentencing. Errors during sentencing can also be appealed, even if the conviction itself isn’t challenged.

Sentencing appeals might involve:

  • Imposing a sentence that exceeds statutory limits

  • Miscalculating credit for time served

  • Failing to apply mandatory sentencing guidelines

  • Issuing inconsistent or unsupported findings for enhanced penalties

In Ohio, appellate courts have the authority to review felony sentences and correct legal errors made during the sentencing phase.

Key Elements That Strengthen an Appeal

Appeals aren’t easy to win. They require well-supported legal arguments and a strong presentation of how the error affected the case outcome. The following elements can help increase the chance of success on appeal:

  • Clear and specific identification of legal errors

  • Citations to relevant case law and statutes

  • Evidence from the trial record to support claims

  • Timely filing of the notice of appeal and related documents

Appeals are rarely granted on technicalities alone. The court needs to be convinced that the mistake in question had a meaningful impact.

When Is an Appeal Most Likely to Succeed?

While no attorney can predict outcomes, certain situations tend to produce stronger appeals. These include cases with:

  • Multiple objections made during trial that were overruled

  • New evidence that casts serious doubt on the original verdict

  • Documented misconduct by court officials or attorneys

  • Trial transcripts showing serious procedural mistakes

Appeals tend to be stronger when objections were made during the trial. If the trial attorney failed to raise the issue at the time, the appellate court might decide the issue was waived.

Alternatives to a Direct Appeal

If the direct appeal is unsuccessful or if new information arises later, there are other post-conviction options available in Ohio.

Post-Conviction Relief

This is a separate legal process from a direct appeal and typically involves new evidence that wasn’t available at the time of trial. Common grounds include:

  • Newly discovered evidence

  • DNA testing results

  • Witness recantations

A petition for post-conviction relief must be filed in the same trial court that handled the original case and must meet strict filing deadlines.

Federal Habeas Corpus

If state-level appeals and relief options are exhausted, a person may file a federal habeas corpus petition. This allows a federal court to review whether the conviction violated constitutional rights.

It’s important to note that habeas petitions are extremely technical and are subject to strict federal time limits.

How Skill and Preparation Influence Appeals

Handling an appeal is different from handling a trial. Appellate work is highly written, technical, and focused on legal analysis. It requires a criminal defense attorney who understands appellate procedure, legal research, and how to present arguments persuasively in writing.

Attorneys handling appeals must have a deep understanding of Ohio appellate rules, deadlines, and legal standards. While they won’t be introducing new facts, they need to show how the existing record supports a reversal or modification of the trial court’s decision.

Reach Out to a Criminal Appeals Attorney Today

Wolfe Law Group, based in Columbus, Ohio, serves clients throughout Dublin, Westerville, Gahanna, Lewis Center, Powell, Hilliard, the City of Delaware, and the surrounding counties—including Licking County, Fairfield County, and Delaware County. 

Their experienced attorneys carefully review trial transcripts, identify viable issues, and develop strategic approaches to challenging convictions or sentences on appeal.

For those in Ohio considering an appeal, acting promptly and meeting all deadlines is essential. If you or a loved one is facing the prospect of a criminal appeal, contact Wolfe Law Group today to discuss your options and take the next step toward protecting your rights.