Appealing a Criminal Conviction in Poland: Process

An appeal against a criminal conviction in Poland is an ordinary legal remedy that allows a party to challenge a first-instance judgment before a higher court. Its purpose is to review whether the judgment was reached lawfully, whether the evidence was assessed correctly, and whether the penalty or other ruling is justified. The relevant procedure is governed primarily by the Polish Code of Criminal Procedure.

For a convicted person, a criminal appeal may be decisive not only for criminal liability, but also for professional status, management functions, immigration matters, public procurement eligibility, and reputational risk. In white-collar cases, the consequences may additionally include asset freezes, confiscation, corporate disruption, and parallel civil or regulatory proceedings.

This is informational material, not legal advice. The available remedy and deadlines depend on the procedural stage and the specific facts of the case.

Who can appeal a criminal conviction in Poland?

Under Article 425 of the Code of Criminal Procedure, an appeal may generally be filed by a party whose rights or interests are adversely affected by the judgment. This may include:

• the defendant or convicted person;
• the defence counsel acting for the defendant;
• the public prosecutor;
• the auxiliary prosecutor, where applicable;
• the private prosecutor in private-prosecution cases; and
• a person whose rights were directly affected by the ruling, where the Code provides for such a remedy.

The scope of the appeal matters. A prosecutor may appeal against an acquittal, a legal classification of the offence, or the severity of a sentence. A defendant will usually seek acquittal, discontinuance of proceedings, a milder legal classification, or a reduction of the penalty.

An appeal may challenge the whole judgment or only a defined part of it. For example, the defence may accept the finding of guilt but challenge the amount of a fine, a driving ban, compensation, forfeiture, or the court’s refusal to conditionally suspend a custodial sentence.

Criminal appeal deadlines and the statement of reasons

The standard deadline for appealing a criminal conviction is 14 days from delivery of the judgment with written reasons. This rule follows Article 445 § 1 of the Code of Criminal Procedure.[1]

In most cases, the party must first request written reasons for the judgment. The request must be submitted within seven days from the date on which the judgment is pronounced, pursuant to Article 422 § 1. Missing this initial deadline may prevent a standard appeal, unless grounds exist for restoration of the time limit under Articles 126–129 of the Code.

The request for reasons should identify whether it concerns the entire judgment or only selected parts. This can be important where the case involves several defendants, multiple charges, or separate rulings on penalties and compensation.

Three exceptions to the standard appeal timeline

First, in accelerated proceedings, the appeal deadline is shorter. Under Article 517h § 1 of the Code of Criminal Procedure, an appeal against a judgment issued in this procedure is filed within seven days from delivery of the judgment with written reasons.[1]

Second, a penal order, known as a wyrok nakazowy, is normally challenged through an objection rather than an appeal. The defendant may file an objection within seven days from delivery of the penal order under Article 506 § 1 of the Code of Criminal Procedure.[1] A default judgment (wyrok zaoczny) is likewise challenged by an objection filed within seven days from delivery, pursuant to Article 482 § 1.

Third, where a court decision is not a judgment but an interlocutory ruling or order, the appropriate remedy may be a complaint, known as zażalenie, rather than an appeal. The usual deadline is seven days, but the availability of this remedy depends on a specific statutory provision, including Articles 459 and 460 of the Code.[1]

How to prepare an effective criminal appeal

An appeal must meet formal requirements. Under Article 427 of the Code of Criminal Procedure, it should identify the challenged judgment, specify the scope of the challenge, and set out the requested outcome. An appeal filed by a public prosecutor, defence counsel, or attorney must also specify the allegations and provide reasons for them. The appellant should explain why the alleged errors affected the judgment.

A well-prepared criminal appeal does not merely repeat the trial defence. It identifies concrete errors in the first-instance ruling and connects them to the result. Typical appeal grounds are listed in Article 438 of the Code of Criminal Procedure:

1. a breach of substantive criminal law;
2. a breach of procedural rules that could have affected the content of the judgment;
3. an error in factual findings adopted as the basis of the judgment; or
4. a manifestly disproportionate penalty, penal measure, compensatory measure, forfeiture, or other measure ordered by the court.

In economic-crime cases, recurring issues include the court’s assessment of accounting evidence, expert opinions, corporate decision-making, the defendant’s actual authority, and the intent required for criminal liability. In cases involving allegations of fraud, tax offences, corruption, or money laundering, the appeal should address the evidentiary chain and not rely solely on general disagreement with the judgment.

What does the appellate court examine?

The appellate court reviews the case within the limits of the appeal and, where allegations have been raised, within the limits of those allegations. However, it must also consider certain serious defects ex officio. Article 439 lists absolute grounds for setting aside a judgment, including situations where the case was heard by a court of improper rank, the composition of the court was unlawful, or the defendant did not have mandatory defence representation.[1]

The appellate court may uphold the judgment, amend it, or set it aside and return the case to the lower court for retrial. Article 437 of the Code regulates these possible outcomes. A retrial is not automatic. Polish procedure generally expects the appellate court to correct deficiencies itself where possible, including by taking additional evidence within statutory limits.

The appellant must also consider the prohibition against worsening the defendant’s position. If an appeal is filed solely for the benefit of the defendant, the appellate court cannot issue a more severe ruling. This protection results from Article 434 of the Code of Criminal Procedure. Its application depends on the direction and scope of all appeals filed in the case.

Cassation to the Supreme Court after a criminal appeal

A cassation to the Supreme Court is not a second ordinary appeal. It is an extraordinary remedy against a final judgment issued by a court of second instance that ends the proceedings. Under Article 519 of the Code of Criminal Procedure, cassation is available only in situations defined by statute.[1]

A cassation application to the Supreme Court cannot normally be based only on a dispute over facts or the assessment of witness credibility. Under Article 523 § 1, it must allege a gross violation of law that could have materially affected the judgment, or rely on an absolute ground listed in Article 439. Cassation filed by a party is also subject to further statutory restrictions under Article 523.

For a party, the deadline is generally 30 days from delivery of the second-instance judgment with written reasons. Cassation must generally be prepared and signed by an advocate or legal adviser, as required by Article 526 § 2. This stage requires a focused assessment because a cassation that merely restates appeal arguments may be dismissed.

Why early review of the conviction matters

Appeal deadlines in Polish criminal proceedings are short, and procedural omissions can be difficult to repair. Prompt review is particularly important where the judgment includes imprisonment, a ban on conducting business activity, forfeiture, compensation, publication of the judgment, or consequences affecting a company’s operations.

Kopeć & Zaborowski (KKZ) assesses judgments, trial records, evidentiary issues, and the interaction between criminal proceedings and business risk. The analysis should cover not only the prospects of an appeal, but also its impact on parallel employment, compliance, regulatory, and reputation-related matters.

When considering an appeal against a criminal conviction, it may be useful to consult the case with a criminal lawyer and discuss possible next steps. An early legal assessment can help identify applicable deadlines, available remedies, and procedural risks.

FAQ – Appealing a Criminal Conviction in Poland

How long do I have to appeal a criminal conviction in Poland?

In the standard procedure, the appeal must be filed within 14 days from delivery of the judgment with written reasons. Usually, written reasons must first be requested within seven days of pronouncement of the judgment.

Can a defendant appeal without a lawyer?

Yes. A defendant may generally file an ordinary appeal personally. However, legal representation is often important where the case involves complex evidence, economic crime allegations, procedural breaches, or extensive court records. Cassation generally requires an advocate or legal adviser.

Can the appellate court increase the sentence?

It may do so if an appeal has been filed to the defendant’s detriment, for example by the prosecutor. If only the defendant or defence counsel appeals in the defendant’s favour, the prohibition in Article 434 generally prevents a more severe outcome.

Does filing an appeal automatically suspend imprisonment?

A first-instance conviction does not become final while a properly filed appeal is pending. The specific effect on detention, bail, travel restrictions, or other preventive measures depends on the court’s separate decisions and the circumstances of the case.

Can new evidence be presented on appeal?

Yes, but the appellate court will assess whether additional evidence should be taken at the appellate stage. The rules are contained primarily in Article 452 of the Code of Criminal Procedure.

What is the difference between an appeal and cassation in Poland?

An appeal challenges a first-instance judgment and allows broader review of facts, evidence, procedure, and penalty. Cassation challenges a final second-instance judgment and is limited to serious legal errors defined by statute.

Bibliography

[1] Act of 6 June 1997 – Code of Criminal Procedure, consolidated text: Journal of Laws of 2025, item 46, as amended, in particular Articles 422, 425, 427, 433–439, 445, 452, 459–460, 482, 506, 517h, 519, 523, 524 and 526, available through the Internet System of Legal Acts (ISAP).

[2] Constitution of the Republic of Poland of 2 April 1997, Article 176(1), Journal of Laws of 1997 No. 78, item 483, as amended.

[3] Protocol No. 7 to the Convention for the Protection of Human Rights and Fundamental Freedoms, Article 2 – Right of appeal in criminal matters.