A conviction can feel like the end of the road, but for many defendants, it isn’t. New Jersey law provides a formal process for challenging a conviction or sentence through the appellate courts, and understanding how that process works — and how different it is from a trial — is the first step toward deciding whether an appeal makes sense for your case.

An Appeal Is Not a Second Trial

One of the most common misunderstandings about appeals is that they offer a chance to retell your side of the story to a new judge or jury. They don’t. An appeal is a review of the trial court record — transcripts, evidence rulings, and legal arguments — to determine whether legal errors occurred that affected the outcome. No new witnesses testify, and no new evidence is introduced. The appellate court is asking a narrower question: did the trial court apply the law correctly, and if not, did that error matter?

Common Grounds for Appeal

Appeals in criminal cases often focus on issues like improperly admitted or excluded evidence, incorrect jury instructions, constitutional violations such as an unlawful search or a Miranda violation, prosecutorial misconduct, or a sentence that falls outside legal guidelines. Not every mistake at trial is grounds for reversal — the error generally has to be significant enough that it likely affected the verdict or sentence.

Timing Is Critical

Unlike many areas of law, appeals in New Jersey operate under strict, largely non-negotiable deadlines. A notice of appeal generally must be filed within 45 days of the judgment of conviction in most criminal matters. Missing this window can permanently forfeit the right to appeal, which is why anyone considering a challenge to their conviction or sentence should speak with an attorney immediately — not months later.

What the Process Looks Like

Once an appeal is filed, it typically involves ordering and reviewing full trial transcripts, identifying the specific legal errors to raise, and submitting detailed written briefs to the Appellate Division. In some cases, the court will hear oral argument before issuing a written decision. This process can take months, and the outcome can range from affirming the conviction, to reversing it outright, to sending the case back to the trial court for further proceedings.

Why Appellate Experience Matters

Appellate practice requires a different skill set than trial work — it’s built on identifying preserved legal errors in a written record and constructing a persuasive legal argument, rather than presenting evidence to a jury. Not every attorney who handles trials also handles appeals, and the distinction matters when your conviction is on the line.

Mark W. Catanzaro represents clients in appellate matters in both state and federal court throughout New Jersey. If you believe errors affected your trial or sentencing, contact our office promptly to discuss your appellate options — time is not on your side.