How to Appeal a Criminal Conviction in California
A criminal conviction does not always have to be the final word. In California, defendants may have the right to challenge a conviction through the appeals process, but that process is strict, technical, and deadline-driven. If you believe legal errors affected the outcome of your case, understanding how an appeal works is the first step toward protecting your rights.
What a Criminal Appeal Is
A criminal appeal is not a new trial. Instead, it asks a higher court to review the trial court record to decide whether legal mistakes occurred that may have affected the outcome. The appellate court does not usually hear new witnesses or consider new evidence on a direct appeal.
That means the focus is on legal issues such as incorrect rulings, improper jury instructions, sentencing errors, or violations of constitutional rights. In other words, the question is not whether the appellate judges would have decided the case differently, but whether the trial was handled fairly under the law.
Who Can Appeal
In California, a defendant found guilty after trial generally has the right to appeal a criminal conviction. Appeals may be available in misdemeanor and felony cases, though the court that hears the appeal depends on the type of conviction.
Misdemeanor appeals are typically handled by the appellate division of the superior court, while felony appeals go to the California Court of Appeal. Because the process differs depending on the charge, it is important to identify the correct court and follow the correct procedure from the beginning.
Deadlines Matter
One of the most important parts of the appeal process is the deadline. For misdemeanor and infraction cases, the notice of appeal generally must be filed within 30 days of the judgment or order. For felony cases, the notice of appeal generally must be filed within 60 days.
These deadlines are strict, and missing them can cause the appeal to be dismissed. That is why anyone considering an appeal should act quickly after sentencing or entry of judgment.
Grounds For Appeal
Not every case can be appealed successfully. A strong appeal usually depends on identifying a legal error that was significant enough to matter to the outcome. Common grounds include insufficient evidence, mistakes of law, improper admission or exclusion of evidence, faulty jury instructions, prosecutorial misconduct, sentencing errors, and ineffective assistance of counsel.
In many appeals, the court also looks at whether the error was harmful or harmless. If the mistake likely did not affect the verdict, the conviction may still be upheld. For that reason, appeals require careful legal analysis and a focused argument rather than a general complaint about the result.
Steps In The Process
The appeal process follows a structured sequence. First, the defendant files a notice of appeal in the trial court. Next, the record of the case is prepared so the appellate court can review the transcripts, filings, exhibits, and rulings from the original proceeding.
After that, both sides submit written briefs explaining their legal positions. In some cases, the court may also hear oral argument before issuing a decision. The appellate court then decides whether to affirm the conviction, reverse it, or send the case back for further proceedings.
What Happens After An Appeal
If the appellate court rules against the defendant, there may still be additional options. A losing party may seek rehearing in some cases, and higher-level review may be available through the California Supreme Court. In very limited circumstances, cases can continue into further appellate review depending on the issues involved.
If new evidence emerges after conviction, or if issues outside the trial record need to be developed, a habeas corpus petition may be the better vehicle than a direct appeal. That distinction matters because direct appeals and post-conviction petitions serve different legal purposes.
Why Legal Representation Helps
Appeals are technical, and small procedural mistakes can have major consequences. A criminal defense attorney can identify appealable issues, review the record, prepare persuasive briefing, and make sure deadlines are met.
Mark Broughton provides criminal defense representation that is well suited to post-conviction matters such as conviction review, sentencing challenges, and strategic next steps after a guilty verdict. For many people, the appeal process is not just about changing a result—it is about making sure the law was applied correctly and every available remedy is considered.
When To Contact An Attorney
If you have been convicted of a crime in California, the safest move is to speak with a lawyer as soon as possible. The earlier an attorney reviews your case, the more likely it is that deadlines, transcripts, and legal issues can be addressed properly.
Even if you are unsure whether your case is appealable, a timely legal review can help you understand your options and avoid missing critical filing dates. Mark Broughton can help evaluate the record, explain whether an appeal makes sense, and guide you through the next steps with clarity and focus.
FAQ
Can I appeal my criminal conviction in California?
Yes, in many cases a defendant can appeal a conviction in California, but the appeal must be based on legal issues and filed within strict deadlines.
Is an appeal a new trial?
No. An appeal is a review of the trial record by a higher court, not a chance to present a brand-new case.
Can new evidence be used on appeal?
Usually not on direct appeal. New evidence is generally handled through other post-conviction procedures, such as habeas corpus.
How long do I have to file?
For most misdemeanor cases, the deadline is 30 days, and for felony cases, it is generally 60 days from the judgment or order.
What can the appellate court do?
The court may affirm the conviction, reverse it, or send the case back for additional proceedings.
A criminal conviction can feel overwhelming, but it may not be the end of the road. If legal error affected your case, an appeal may provide a way to challenge the result and protect your future.
Mark Broughton offers experienced criminal defense guidance for people who need help after a conviction, and he can evaluate whether an appeal or other post-conviction strategy is appropriate. Contact Mark Broughton to discuss your case and take the next step toward protecting your rights.

