Preparatory proceedings

Glossary category

What are preparatory proceedings?

Preparatory proceedings are the pre-trial stage of criminal proceedings in which the competent authorities verify whether a criminal offence may have been committed, identify the persons involved, collect and secure evidence, and decide whether the case should be brought before a court. In the Polish criminal justice system, this stage is commonly referred to as postępowanie przygotowawcze.

Preparatory proceedings are usually conducted or supervised by a public prosecutor. Depending on the type and complexity of the case, operational and procedural activities may also be carried out by the Police, the Border Guard, the Central Anti-Corruption Bureau, tax and customs authorities, or other authorised bodies. The prosecutor remains responsible for key procedural decisions, especially where the case may lead to an indictment, discontinuance, or the use of coercive measures.

This stage is not a court trial. Its purpose is to prepare the case for a possible judicial phase, while ensuring that evidence is gathered lawfully and that the rights of the suspect, the injured party, and other participants are respected. Preparatory proceedings may take the form of an investigation or an inquiry. In general terms, an investigation is used in more serious or complex cases, while an inquiry is intended for less complex matters, although the classification depends on the applicable procedural rules and the circumstances of the case.

What do preparatory proceedings involve?

Preparatory proceedings may include a wide range of procedural actions. These can include taking witness statements, questioning a suspect, obtaining expert opinions, securing documents, analysing electronic data, conducting searches, seizing property, verifying financial flows, and requesting information from institutions or public authorities. In cross-border cases, the authorities may also use instruments of international cooperation, such as requests for mutual legal assistance, a European arrest warrant, or extradition procedures.

One of the most important moments in this stage is the presentation of charges. From that point, a person may formally acquire the status of a suspect and obtain specific procedural rights, including the right to defence, the right to remain silent, and the right to be assisted by a defence lawyer. The suspect may also submit evidentiary motions, challenge certain decisions, and participate in selected procedural actions, depending on the status of the case and the limitations permitted by law.

The injured party also plays an important role in preparatory proceedings. A person or entity whose legal good has been directly violated or threatened by an alleged offence may submit evidence, request procedural actions, challenge certain decisions, and later participate in the court phase as an auxiliary prosecutor, if the law allows it. For businesses, this may be relevant in cases involving fraud, theft, cybercrime, forgery, unfair competition, breach of trust, or offences committed within a corporate structure.

Preparatory proceedings may end in different ways. If the collected evidence justifies bringing the case to court, the prosecutor may file an indictment. If the evidence does not support prosecution, or if legal grounds for further proceedings are absent, the case may be discontinued. In some matters, other procedural outcomes may be considered, such as a request for conditional discontinuance or the use of consensual mechanisms provided by criminal procedure.

When should legal assistance be considered?

Legal assistance may be important from the earliest stage of contact with law enforcement authorities. This applies not only when a person has already been charged, but also when they are summoned as a witness, when a search is taking place, when property is seized, when company documentation is requested, or when there is a risk that a witness may later become a suspect.

For individuals, preparatory proceedings may involve risks related to detention, questioning, preventive measures, prohibition on leaving the country, including passport retention, seizure of property, or reputational consequences. A lawyer can help assess the procedural status of the person involved, prepare for questioning, verify whether the authorities acted within the law, and respond to decisions that may affect personal freedom or property.

For entrepreneurs and management board members, the practical risks often concern company documents, employee interviews, electronic evidence, internal investigations, tax and customs matters, financial crime allegations, and the potential liability of persons managing the organisation. In such situations, legal support helps coordinate communication with authorities, protect privileged information where applicable, and reduce the risk of inconsistent or damaging procedural actions.

A prompt consultation with a lawyer may help avoid procedural mistakes, unnecessary disputes, exposure to liability, or financial losses. Early legal assessment is particularly important where the case involves multiple jurisdictions, electronic evidence, business records, media interest, or a possible request for arrest, extradition, or other coercive measures.

Legal support in preparatory proceedings

Law firm support in matters involving preparatory proceedings may include in particular:

  • representation of suspects, persons facing criminal allegations, injured parties, witnesses, and companies during the pre-trial stage;
  • participation in interrogations, searches, seizures, and other procedural actions;
  • analysis of summonses, charges, evidence, and decisions issued by prosecutors or other authorities;
  • preparation of evidentiary motions, complaints, statements, and defence submissions;
  • support in cases involving detention, bail, prohibition on leaving the country, including passport retention, police supervision, or other preventive measures;
  • advice for companies in criminal, fiscal criminal, compliance, and internal investigation matters;
  • coordination of defence strategy in cross-border cases, including extradition and European arrest warrant matters.

Need assistance in preparatory proceedings? Contact us.

See also

  • Indictment
  • Injured Party
  • Passport retention
  • European arrest warrant