What is espionage?
Espionage is the unlawful collection, transfer or use of information for the benefit of a foreign state, a foreign intelligence service or another entity acting against the security interests of a state. In criminal law, espionage is usually associated with spying, intelligence activity, disclosure of protected information, recruitment of sources, covert communication and actions intended to weaken national security, public safety or defence capabilities.
In Poland, espionage is primarily regulated by Article 130 of the Polish Criminal Code. The provision covers conduct connected with participation in foreign intelligence activity against the Republic of Poland, acting for the benefit of foreign intelligence, providing information to foreign intelligence, organising or directing such activity, as well as certain preparatory or supportive acts. Depending on the circumstances, an espionage case may also involve rules on classified information, cybersecurity, official secrecy, military security, border control, sanctions, money laundering, corruption or organised crime.
Espionage does not always involve traditional spying in the form of secret meetings or physical documents. It may also concern digital data, encrypted communications, cloud systems, databases, geolocation information, credentials, technical documentation, research results, defence-related contracts, infrastructure plans or strategic business information. For this reason, espionage investigations often combine criminal law, national security law, digital forensics and cross-border cooperation between authorities.
What does espionage involve?
Espionage may involve obtaining information without authorisation, transmitting information to a foreign intelligence service, maintaining contact with intelligence officers, recruiting or attempting to recruit another person, using cover identities, financing intelligence activity or facilitating access to restricted systems or premises. The information does not always have to be formally classified to be relevant in an investigation. Authorities may also assess whether the information could be useful for hostile intelligence purposes or harmful to the security interests of the state.
In practice, espionage cases may concern public officials, members of the armed forces, employees of companies operating in sensitive sectors, researchers, consultants, IT specialists, journalists, foreign nationals, dual citizens or persons with access to protected infrastructure. Sensitive sectors may include defence, energy, telecommunications, transport, public administration, banking, advanced technologies, critical infrastructure and cybersecurity.
A separate but related issue is corporate or industrial espionage. This term is often used to describe the unlawful acquisition of business secrets, know-how, technical data or commercial strategies. Not every act of corporate espionage is espionage in the strict criminal-law sense. It may instead be treated as theft of trade secrets, unfair competition, fraud, breach of confidentiality, unauthorised access to IT systems or violation of employment duties. The legal classification depends on the purpose of the conduct, the type of information, the recipient of the data and whether a foreign intelligence link or state-security element can be established.
Espionage investigations are usually evidence-intensive. They may involve searches, seizure of electronic devices, analysis of communications, surveillance materials, financial records, travel history, access logs, witness testimony, expert opinions and cooperation with foreign authorities. In cross-border cases, instruments such as extradition, a European arrest warrant, mutual legal assistance or international police cooperation may become relevant.
When should legal assistance be sought in an espionage-related matter?
Legal assistance should be sought immediately if a person is detained, questioned, summoned as a suspect or witness, or becomes aware that their devices, workplace, correspondence or travel activity are under scrutiny in connection with alleged espionage or disclosure of sensitive information. Early legal advice is also important when a company identifies unauthorised access to strategic data, receives inquiries from state authorities, suspects insider activity or must decide whether and how to notify public institutions.
Private individuals may need legal support if they are accused of cooperating with a foreign service, transmitting information abroad, breaching confidentiality obligations, assisting another person in intelligence activity or communicating with persons considered to be linked to foreign intelligence. Foreign nationals may additionally face immigration consequences, detention, removal proceedings, refusal of residence permits or entry bans.
Entrepreneurs and management boards should seek advice when an incident concerns classified information, defence contracts, strategic infrastructure, cybersecurity breaches, employee access to sensitive files, suspicious data transfers, cooperation with foreign contractors or regulatory obligations after a security incident. A poorly handled internal response may increase exposure to criminal, civil, administrative and reputational risks.
A prompt consultation with a lawyer can help secure evidence, assess legal exposure, protect procedural rights, avoid inconsistent statements, manage communication with authorities and reduce the risk of avoidable disputes, liability or financial loss. In espionage-related matters, delay may make it more difficult to reconstruct facts, preserve digital evidence or prevent further dissemination of sensitive information.
Legal support in espionage-related matters
Support of a law firm in matters involving espionage, intelligence activity or disclosure of sensitive information may include in particular:
- legal assessment of potential criminal liability under Polish law, including Article 130 of the Polish Criminal Code;
- representation of suspects, accused persons, witnesses and injured parties in criminal proceedings;
- assistance during detention, questioning, searches, seizure of devices and analysis of procedural decisions;
- advice for companies affected by leaks, unauthorised access, insider threats or suspicious cooperation with external entities;
- coordination of internal investigations, evidence preservation and communication with public authorities;
- assessment of risks connected with classified information, trade secrets, cybersecurity and critical infrastructure;
- support in cross-border matters involving extradition, European arrest warrants or foreign proceedings;
- preparation of compliance procedures, confidentiality rules and incident response frameworks.
Need assistance in an espionage-related matter? Contact us.
See also
- European arrest warrant
- Extradition detention
- Indictment
- Passport retention