Area of practice · Criminal defence
Terrorism and State Security
Allegations under §§ 129a, 129b, 89a StGB, proceedings before the higher regional court (Oberlandesgericht).
1What is it about?
State security proceedings concern allegations such as membership of a terrorist organisation (§ 129a StGB), participation in a terrorist organisation abroad (§ 129b StGB), preparation of a serious act of violence endangering the state (§ 89a StGB) and terrorist financing (§ 89c StGB). They are frequently conducted by the Federal Prosecutor General (Generalbundesanwalt) and tried at first instance before the higher regional court (Oberlandesgericht) (§ 120 GVG).
The investigations are highly intrusive: surveillance, online searches, pre-trial detention and special restrictions on contact with the defence lawyer are possible. At the same time, some offence definitions are broadly drawn and take effect at a very early stage. For those affected, a careful defence that safeguards the rule of law is particularly important.
2Typical case scenarios
- Allegation of support for, or membership of, an organisation abroad.
- Allegation of preparing an offence, for instance through training, travel or procurement.
- Allegations in connection with fundraising or payments.
- Criminal liability in connection with symbols of prohibited organisations or with statements (for instance §§ 86a, 140 StGB, § 20 Vereinsgesetz).
- Departure to or return from conflict zones.
3Frequently asked questions
Who conducts the investigations?
In state security offences, frequently the Federal Prosecutor General, in some cases the state prosecution offices and special units. At first instance, the higher regional court decides in many cases; an appeal on points of law (Revision) to the Federal Court of Justice (Bundesgerichtshof) is possible against its judgment.
Are there any special features regarding contact with the defence lawyer?
In certain proceedings under § 129a StGB, surveillance and restrictions on communication with the defence lawyer are possible under narrow conditions (§ 148 para. 2 StPO). You should therefore discuss the defence only in a protected setting.
What does § 129b StGB mean?
The provision extends criminal liability to criminal and terrorist organisations abroad. Prosecution generally requires authorisation from the Federal Ministry of Justice.
Are political statements a criminal offence?
Only if they fulfil the offence definitions of the Criminal Code. Freedom of expression is protected as a fundamental right, but its limits must be examined in each individual case.
4How the proceedings unfold
- InvestigationsObservation, surveillance, analysis of communications and travel movements.
- ArrestArrest warrant issued by the investigating judge at the Federal Court of Justice or the higher regional court.
- IndictmentIntermediate proceedings, opening before the higher regional court.
- Main hearing and appealExtensive taking of evidence, appeal on points of law (Revision) to the Federal Court of Justice.
5What requires particular attention
- If investigators contact you, involve a defence lawyer immediately.
- Do not give any information about your beliefs or contacts without first consulting your lawyer.
- Communications may be monitored; avoid conversations about the proceedings.
- Assets and accounts may be seized; clarify this at an early stage.
6How we defend you
We carefully examine the legal basis for the measures, jurisdiction and the elements of the offence. We look into what you are specifically accused of, what evidence exists and whether the case rests on suspicion or on mere beliefs.
We represent you in the detention review and the main hearing, check the admissibility of the surveillance measures used and work towards a fair procedure that respects the rule of law. Given the gravity of the allegations, we involve you and your family transparently.
Legal bases (official statutory text):
Further topics
Areas of practice
- Investigation proceedings
- Pre-trial detention
- White-collar criminal law
- Tax criminal law
- Capital offences
- Narcotics criminal law
- Violent and sexual offences
- Juvenile criminal law
- International mutual legal assistance
- Organised crime
- Offences by public officials
- Assembly and Demonstration Criminal Law
- Hate Crime and Incitement to Hatred
- Crypto and Cybercrime
- Medical Criminal Law
Your situation
- Arrest and detention
- Police summons
- Penal order (Strafbefehl)
- Search of your home
- Questioning as an accused
- Indictment
- Summons as a witness
- Main hearing
- Discontinuation of proceedings
- Appeal on facts and appeal on points of law
- I have been reported to the police
- Victims and private prosecution as joint plaintiff
This page provides general information on German criminal law (as of September 2026) and is not a substitute for legal advice in an individual case. The law and case law may change. Different rules apply to proceedings in Switzerland.
