A criminal appeal is a request for a higher court to review what happened in the trial court and decide whether legal errors occurred that require a remedy. Appeals are not do-overs, and they’re not usually about re-arguing witness credibility.
If you’re deciding what to do after a conviction, this guide explains the basic appeal process, what appellate courts look at, and what you can expect.
What an Appeal Is (and What It Isn’t)
An appeal asks the appellate court to decide whether the trial court made legal errors—things like improperly admitting or excluding evidence, giving incorrect jury instructions, denying constitutional rights, imposing an unlawful sentence, or making legal errors in rulings on motions like suppression.
An appeal is not a new trial with new witnesses. It’s not a chance to introduce new evidence. It’s not a simple “unfairness” argument without a specific legal error. Appellate courts review what happened using the existing record.
What the Appellate Court Reviews: The Record
Appeals are built on the record—the official documentation of what happened in the trial court. The record usually includes transcripts of trial, hearings, and sentencing; motions and written filings; rulings and orders; and admitted exhibits.
Because the record is so important, transcript availability and record completeness can affect both timing and what issues can be raised. Missing parts of the record can limit what an appellate court can review.
Related guide: Transcripts & Records.
The Basic Appeal Timeline
1. Notice of Appeal
2. Record and Transcript Preparation
3. Briefing (Written Arguments)
4. Oral Argument (Sometimes)
5. The Court’s Decision
6. What Happens Next
What Issues Can Be Raised on Appeal?
The right appellate issues depend on your record and what happened in court. Some cases have clear legal errors; others present closer questions. Common categories include:
Trial Errors
- Evidentiary rulings: What evidence the jury was allowed to hear—or wasn’t allowed to hear. Improper admission of harmful evidence or exclusion of helpful defense evidence can be appealable.
- Jury instruction problems: Incorrect instructions, failure to give a requested instruction, or misstatements of law that affect the verdict.
- Limits on cross-examination or defense witnesses: Improper limits can violate the right to present a defense, depending on the circumstances and the record.
- Prosecutorial misconduct: Improper argument, introduction of inadmissible evidence, or conduct that undermines fairness. These claims are fact-specific and must be supported by the record.
Constitutional Issues
- Fourth Amendment: Unlawful searches and seizures. If evidence was obtained through an illegal search and a motion to suppress was denied, it may be challenged on appeal.
- Fifth Amendment: Statements and interrogation procedures—whether statements were properly obtained and whether constitutional violations occurred.
- Sixth Amendment: Right to counsel, confrontation issues, and (in some cases) ineffective assistance of counsel. Some issues are raised on direct appeal; others are more commonly raised later.
- Due process: A broad category covering serious fairness issues and improper procedures that affected the outcome.
Sentencing Issues
- Illegal or unauthorized sentences: When the trial court imposes a sentence the law doesn’t allow. These can be strong issues because the sentence itself violates the statute.
- Improper enhancements or legal mistakes: Errors in sentencing guidelines, criminal history, or other legal mistakes affecting sentencing decisions.
Why “Preservation” Matters (and What It Means)
Appellate courts often focus on whether an issue was properly raised in the trial court. This is sometimes called preservation.
In plain terms: if a problem happened at trial, the court may ask whether there was an objection, whether the judge ruled on it, and whether it’s clear in the record. Even strong issues can become harder to win if the record is unclear or the issue wasn’t raised at the right time.
Standards of Review: Why Some Issues Are Harder Than Others
Different issues are reviewed under different standards of review, which affects how much freedom the appellate court has to intervene. Some standards give the trial court significant deference; others allow closer review.
You don’t need to memorize standards to understand the takeaway: some issues are easier to win than others, even if they feel equally unfair. A strong appeal is usually focused on issues that fit the record and the applicable standard.
Frequently Asked Questions
How long does an appeal take?
It depends on transcripts, briefing schedules, and the court’s docket. Many cases take months, and some take longer—especially in complex matters.
Can I introduce new evidence on appeal?
Usually not. Appeals typically rely on the existing trial court record.
Can I appeal after a guilty plea?
Sometimes, but it depends on what happened and what issues exist. Plea-related appeals are often limited and fact-specific.
What if my appeal deadline has passed?
Post-conviction relief may still be possible depending on the case.
