How the Criminal Appeals Process Works After a Conviction

Oct 28 2026 16:08

A criminal conviction can be overwhelming, but it does not necessarily end every legal option. In some circumstances, a defendant can ask a higher court to examine whether errors during the original case affected the result. For defendants and families facing this situation, understanding the criminal appeals process can help clarify what may come next.

An appeal is not a second trial or another chance to present the case from the beginning. Instead, it centers on legal errors that may have compromised the fairness of the trial or sentencing. Knowing how appeals work, why they may be filed, and what outcomes may be possible is essential when considering post-conviction options.

What Is a Criminal Appeal?

A criminal appeal is a formal legal request asking a higher court to review a conviction or sentence issued by a trial court. The appellate court generally does not hear new witnesses or retry disputed facts. Its role is to review the existing record and decide whether the law was applied correctly.

That record can include motions filed before and after trial, admitted evidence, transcripts of hearings and trial proceedings, and the written arguments submitted by both sides. In certain cases, the court also hears oral argument, which gives attorneys an opportunity to address the judges' questions and explain their legal positions.

Ultimately, the appellate process examines whether the proceedings complied with the law and whether any mistake may have influenced the case's outcome.

Who May Appeal a Criminal Conviction?

In most cases, a person convicted after a criminal trial before a judge or jury may have the right to appeal. The court route depends on whether the conviction came from a state court or a federal court.

For a state criminal case, the first appeal commonly goes to the state's intermediate appellate court. When that court does not grant relief, a defendant may be able to seek review by the state's highest court. A federal criminal conviction is generally appealed to the applicable United States Circuit Court of Appeals.

Deadlines are a critical part of preserving the right to appeal. A federal notice of appeal can be due as soon as 14 days after the relevant judgment, while many state systems provide roughly 30 days. Deadlines differ by jurisdiction, but they often pass quickly, making prompt action especially important.

Common Reasons for a Criminal Appeal

An appeal cannot rest solely on disagreement with a guilty verdict. It must generally identify a specific legal problem that may have affected the fairness of the proceedings or the final result.

Common issues raised on appeal include:

Errors Made During Trial

A frequent appellate issue involves an error by the trial court. For example, a court may have admitted evidence that should have been excluded, kept out evidence that should have been considered, given inaccurate jury instructions, or made another procedural ruling that could have influenced the verdict.

Ineffective Assistance of Counsel

A defendant may contend that their lawyer did not provide constitutionally effective representation. These claims generally require more than showing that a different strategy might have been preferable. The defendant typically must establish that counsel performed below an objectively reasonable standard and that the deficiency materially affected the trial's result.

Juror Misconduct

Jurors are expected to follow the court's directions throughout the trial and deliberations. When improper behavior may have occurred, whether during the proceedings or while the jury was deliberating, it can raise concerns about whether the defendant received a fair trial and may support an appeal.

Constitutional Rights Violations

An appeal may also be based on a violation of constitutional protections during an investigation, arrest, trial, or another stage of the case. These claims focus on whether a fundamental right was infringed in a manner that affected the criminal proceedings.

What Takes Place in an Appeal?

Appeals operate differently from trials. No new witnesses are called, and additional evidence is generally not introduced. Instead, appellate judges study the record created in the trial court and consider whether the law was properly applied.

Both parties submit written briefs setting out the legal arguments for their respective positions. Those briefs are central to the court's evaluation. In selected cases, the court will also schedule oral argument, allowing attorneys to respond to questions and further explain why the law supports their position.

Once the judges have reviewed the record and arguments, the appellate court issues a written decision.

Potential Results of a Criminal Appeal

When an appellate court finds a significant legal error, the result can vary according to the circumstances of the case.

The court may reverse the conviction, change the sentence, or direct the trial court to conduct a new trial. It may also return the matter to the trial court for further proceedings that follow the appellate court's ruling.

Appeals are not always successful. If an intermediate appellate court leaves the conviction in place, the defendant may still be able to request review by the state's highest court. In narrow situations, review by the United States Supreme Court may also be sought.

Because every case has its own facts and procedural history, the options available after a decision can differ substantially from one case to another.

Why Prompt Action Is Important

Timing is one of the most important considerations in a criminal appeal. Appeal deadlines are strict, and missing the filing deadline can eliminate the opportunity to pursue appellate review. Since the process begins soon after conviction or sentencing, delay can seriously restrict a defendant's available options.

Obtaining legal guidance early provides time to review the record, assess potential errors, and determine whether an appeal may be warranted. At Thomas & Robbins, LLC, a careful review of the original proceedings can help identify the legal avenues that may be available.

If you or a loved one has been convicted of a crime and would like to understand the appeals process, Thomas & Robbins, LLC is available to discuss the circumstances of the case and whether a criminal appeal may be an option.