The Constitutional Complaint (Verfassungsbeschwerde) Procedure
The constitutional complaint (Verfassungsbeschwerde) is the central remedy for the protection of fundamental rights in the German legal order. Governed by Article 93(1)(4a) of the Grundgesetz and sections 90 to 95 of the Federal Constitutional Court Act (Bundesverfassungsgerichtsgesetz, BVerfGG), the constitutional complaint enables any person to challenge acts of public authority that allegedly violate their fundamental rights. It is the most frequently used procedure before the Federal Constitutional Court, with approximately five to six thousand complaints filed each year.
Standing Requirements
To bring a constitutional complaint, the complainant must satisfy several standing requirements. First, the complainant must be capable of holding fundamental rights. Natural persons are always eligible. Domestic legal persons, including corporations and associations, may bring complaints where the fundamental right invoked is applicable to legal persons by its nature (Article 19(3) GG). Foreign legal persons have limited standing, generally only where the right invoked concerns procedural guarantees or property rights protected under international law.
Second, the complainant must allege a direct and personal infringement of their fundamental rights. The challenged act must affect the complainant’s own legal position, not merely the general public interest. An abstract challenge to a statute without personal impact is inadmissible. The complainant must demonstrate the possibility that their fundamental rights have been violated — not certainty, but a plausible claim of infringement. This requirement excludes popular actions (Popularklage) and ensures that the Court focuses on concrete rights violations.
Third, the complainant must establish that the infringement is current and not hypothetical. A complaint challenging a statute must show that the statute directly applies to the complainant without requiring further implementing measures. The requirement of currency ensures that the Court does not issue advisory opinions on moot questions, though the Court may decide a complaint that has become moot if it raises a question of fundamental constitutional importance.
The Principle of Subsidiarity
The constitutional complaint is subsidiary to all other legal remedies. Section 90(2) BVerfGG requires the complainant to exhaust all available legal avenues before filing a complaint. This includes appeals to higher courts within the ordinary, administrative, labour, social, or fiscal court systems, as well as any other legal recourse that could provide relief. The purpose of the subsidiarity requirement is to ensure that the ordinary courts have the opportunity to address the constitutional issue and to prevent the Constitutional Court from being flooded with cases that could be resolved at a lower level.
Where the complaint challenges a statute directly (Rechtssatzverfassungsbeschwerde), the complainant must demonstrate that no recourse to the ordinary courts would provide effective relief. This typically requires showing that the statute directly and immediately affects the complainant’s legal position without requiring an implementing administrative act or judicial decision. If the statute requires implementation, the complainant must first challenge the implementing act through the courts.
The Federal Constitutional Court has developed the additional requirement of substantive subsidiarity in cases raising novel constitutional questions. Even where no further legal remedies are available, the Court may require the complainant to have sought relief in the ordinary courts where those courts could have clarified factual or legal issues relevant to the constitutional assessment. This substantive subsidiarity ensures that the Court benefits from the ordinary courts’ factual findings and legal analysis before addressing the constitutional question.
The One-Month Filing Period
Section 93(1) BVerfGG requires that the constitutional complaint be filed within one month of the challenged decision. The period runs from service or formal notification of the decision, or in the absence of service, from the date the complainant learned of the decision. For complaints challenging statutes directly (where no judicial decision exists), the complaint must be filed within one year of the statute’s entry into force.
The one-month period is strict and rarely extended. The complainant must have legal representation for the filing: under section 22(1) BVerfGG, complaints must be submitted in writing and signed by a lawyer admitted to practice in Germany, or by a law professor at a German university acting as counsel. The complaint must specify the constitutional right allegedly violated, identify the challenged act, and set out the reasons for the alleged violation. The formal requirements are strictly enforced, and non-compliance results in inadmissibility.
The Admissibility Screening Process
The Federal Constitutional Court operates a two-stage screening process to manage the high volume of constitutional complaints. At the first stage, each complaint is assigned to a three-judge panel (Kammer) within the relevant Senate. The panel conducts a preliminary examination of whether the complaint meets the admissibility requirements and whether it has sufficient prospects of success.
The three-judge panel may reject the complaint by unanimous decision without providing reasons. A complaint is rejected where it is inadmissible (failing standing, subsidiarity, or timing requirements) or where it is manifestly unfounded — that is, the alleged constitutional violation is clearly not present. If the panel unanimously finds the complaint well-founded and the constitutional issue has already been resolved by the Court, it may grant the complaint through a summary decision (Stattgebender Kammerbeschluss), setting aside the challenged act. This preliminary decision mechanism allows the Court to resolve straightforward cases efficiently without full Senate consideration.
Approximately 97 per cent of constitutional complaints are rejected at this preliminary stage. The high rejection rate reflects both the strict admissibility requirements and the limited role of the Constitutional Court as a constitutional court rather than a general appellate court. The constitutional complaint is not a remedy for every legal error but only for violations of specific constitutional rights.
Full Proceedings Before the Senate
If the three-judge panel determines that the complaint raises a novel or fundamental constitutional question requiring full consideration, it refers the case to the Senate. The Federal Constitutional Court has two Senates of eight justices each, with jurisdiction divided by subject matter. The First Senate generally handles fundamental rights cases (particularly personal liberty, freedom of expression, and criminal procedure), while the Second Senate handles institutional disputes, party finance, electoral law, EU law, and international law.
The Senate may hold an oral hearing but often decides on written submissions. The Court may request the views of the federal government, the Land government, and the legislature that enacted the challenged statute. Third parties with a legitimate interest may submit observations. The Senate deliberates in secret and issues a reasoned decision. The decision is published in the official case reports (Entscheidungen des Bundesverfassungsgerichts, BVerfGE) and may be accompanied by dissenting opinions, which have been permitted since 1970.
Decision Options
If the Court finds the constitutional complaint well-founded, it has several remedial options. Where the complaint challenges a court judgment, the Court may set aside the judgment and remit the case to the competent court for reconsideration. Where the complaint challenges a statute, the Court may: (1) declare the statute void (nichtig), permanently removing it from the legal order; (2) declare the statute incompatible (unvereinbar) with the Grundgesetz while allowing the legislature a transitional period to remedy the defect; or (3) interpret the statute in a manner consistent with the Constitution (verfassungskonforme Auslegung), specifying the constitutional interpretation that must be followed.
Where the Court declares a statute incompatible rather than void, it may combine the declaration with provisional measures to govern the period until the legislature acts. This approach is common where annulling the statute would create a legal vacuum worse than the constitutional violation. The legislature must then enact remedial legislation within the period specified by the Court.
The Court’s decisions on constitutional complaints have the force of law (Gesetzeskraft) under section 31(2) BVerfGG and are published in the Federal Law Gazette. They bind all courts and authorities. The constitutional complaint procedure has thus enabled the Court to develop fundamental rights jurisprudence across all areas of German law — from criminal procedure and family law to tax law, immigration, and social security — making the Federal Constitutional Court one of the most influential judicial institutions in Europe.