Authorisation of coercive measures

The authorisation of coercive measures under Section 105 of the Code of Criminal Procedure (StPO) refers to the court’s decision on particularly intrusive measures in investigation proceedings, in particular the imposition or continuation of pre-trial detention as well as other coercive measures provided for by law. In doing so, the court independently examines whether the statutory requirements are met, whether the measure is proportionate and whether it must be time-limited.

The authorisation is not a mere formality, but a mandatory rule-of-law control instrument that limits the powers of interference of the public prosecutor’s office and the criminal police. The court may order additional investigations, request reports and, in the case of urgent oral authorisation, must document the basis for its decision. If a measure is approved only provisionally, this may occur solely where waiting until the next official working hours would be impermissible.

The authorisation of coercive measures is the court’s approval for particularly intrusive measures in investigation proceedings, such as pre-trial detention or certain investigative measures, with the court monitoring their lawfulness, proportionality and time limitation.

Systematic position within the investigation proceedings

The authorisation of coercive measures constitutes the central judicial control instrument in investigation proceedings. The public prosecutor’s office directs the proceedings and the criminal police investigate, but in cases of serious interferences with fundamental rights, only the court decides.

The court independently examines whether the statutory requirements are met, whether there is a specific suspicion of an offence and whether the interference is necessary and proportionate. It does not merely rubber-stamp applications by the public prosecutor’s office, but carries out an independent substantive review.

This structure safeguards the separation of powers in investigation proceedings. At the same time, it protects the suspect from hasty or disproportionate measures. Without judicial authorisation, particularly intrusive interferences may not be carried out.

Court decision on pre-trial detention

Pre-trial detention directly interferes with the fundamental right to personal liberty. For this reason, only the court decides on its imposition or continuation.

In particular, the court clarifies the following points:

• Urgent suspicion of an offence
• Specific ground for detention, such as risk of flight or risk of tampering with evidence
• Proportionality in the individual case

The court forms its own view of the evidentiary situation and critically reviews the public prosecutor’s arguments. It also sets clear time limits for the implementation of authorised measures. If a set time limit expires unused, the authorisation loses its effect.

If the court authorises a measure, it sets a binding time limit for its execution. If the measure is not carried out within this time limit, the authorisation automatically lapses. In this way, the law prevents powers of interference granted once from continuing without temporal control.

In the case of a wanted notice for arrest, the period during which the notice is valid is not counted towards the set time limit. At the same time, the law obliges the public prosecutor’s office to review at least once a year whether the requirements for arrest continue to be met. This rule ensures ongoing statutory oversight of long-term search measures.

The detention decision therefore fulfils a dual function. It enables effective criminal prosecution while at the same time guaranteeing rule-of-law oversight of deprivation of liberty.

Authorisation of other coercive measures

In addition to pre-trial detention, judicial oversight also covers further measures with significant intrusiveness. These measures can deeply interfere with privacy, property or freedom of communication.

Before making a decision, the court may:

• order additional investigations
• request reports from the public prosecutor’s office or the criminal police

The court is not bound by the presentation in the application. It independently examines the legal and factual requirements and requests further clarification if doubts remain.

In urgent exceptional cases, a measure may be provisionally authorised orally. However, a decision outside regular working hours is only considered if a postponement would be unreasonable.

Judicial authorisation therefore constitutes a substantive review of fundamental rights and forms an essential protective mechanism in criminal proceedings.

Reporting obligations of the public prosecutor’s office and the criminal police

The court’s decision is not limited to the application. The court may request from the public prosecutor’s office and the criminal police factual clarifications from the files as well as the submission of a report on the execution of the authorised measure and on further investigations.

If the court requests this information, it receives a solid basis for tracing how the authorised measure was implemented.

In particular, the court may:

• request reports on the execution of the measure
• have file documents submitted for ongoing oversight

After pre-trial detention has been imposed, the court may order that certain file documents continue to be submitted to it. This means the court is not only informed at the time of the detention decision, but can continuously follow the further development of the proceedings.

Through these mechanisms, judicial oversight does not remain theoretical, but has a practical effect on the proceedings. This strengthens the transparency and traceability of state interferences.

Provisional oral authorisation in cases of imminent danger

In particularly urgent situations, the court may provisionally authorise a coercive measure orally. This exception applies only if immediate action is required and waiting would appear unreasonable.

Even in this constellation, judicial responsibility remains. The court records the essential content of the submission and the reasons for the urgency in an official note. In doing so, it documents in a comprehensible manner why it did not wait.

The court must record the essential content of the public prosecutor’s submission as well as the reasons for the urgency as a mandatory requirement. This documentation obligation ensures the subsequent reviewability of the urgent decision and prevents an informal circumvention of judicial oversight.

This rule prevents investigative measures from failing due to formal delays. At the same time, it ensures subsequent reviewability of the decision. The exception serves efficiency, not the circumvention of judicial oversight.

On-call duty and duty judge service in the context of coercive measures

Outside regular working hours, courts are available within the framework of on-call duty or duty judge service. Nevertheless, a coercive measure may be authorised during this period only if waiting until the next regular start of duty would be unreasonable.

This restriction sets a clear boundary. Not every practical convenience justifies an immediate decision. Rather, the court strictly examines whether the measure truly cannot be postponed.

The rule ensures that emergency powers do not become routine. It protects those affected from hasty interferences while at the same time preserving the ability of criminal prosecution to act in genuine emergencies.

Legal remedies against authorised measures

Anyone who, in investigation proceedings, claims to have been violated in a subjective right by the public prosecutor’s office may lodge an objection on the grounds of a violation of rights. This applies in particular to cases in which the exercise of a right is refused or an investigative or coercive measure is ordered or carried out unlawfully.

The objection must be filed within six weeks of becoming aware of the alleged violation of rights with the public prosecutor’s office. If, at the same time, an appeal is lodged against the authorisation of an investigative measure, the objection must be combined with that appeal.

• lack of suspicion of an offence
• insufficient reasoning
• disproportionate interferences

The appellate court independently examines whether the statutory requirements were in fact met. This review option strengthens the position of the defence and ensures a multi-level review of fundamental rights.

Effective legal protection prevents flawed or excessive measures from becoming entrenched.

Significance for suspects and the defence

For suspects, coercive measures often have significant personal and economic consequences. Pre-trial detention, house searches or seizures directly interfere with liberty, assets and reputation.

An active defence therefore reviews at an early stage:

• whether the authorisation was properly issued
• whether the measure remains substantively justified

Those who react early can quickly end unlawful interferences or at least limit them. The defence uses both formal objections and substantive proportionality arguments.

The practical significance is obvious. Without legal support, those affected risk not being able to assert their rights effectively.

Practical relevance in everyday criminal law practice

The authorisation of coercive measures is among the most frequent and, at the same time, most sensitive decisions in investigation proceedings. It concerns not only serious economic or violent offences, but also numerous everyday constellations.

In practice, the court regularly decides on:

• applications for detention
• applications for searches
• seizures or data preservation orders

These decisions significantly shape the further course of the proceedings. A measure once executed often creates facts that can hardly be reversed later.

Judicial authorisation therefore lies in the tension between efficiency of criminal prosecution and protection of individual fundamental rights. Precisely for this reason, it requires particular care and consistent legal oversight.

Distinction from orders by the public prosecutor’s office

Not every investigative measure requires judicial authorisation. The public prosecutor’s office orders numerous measures itself and bears responsibility for them. However, the requirement of judicial authorisation always applies when an interference reaches a particularly high level of intensity in terms of fundamental rights.

The distinction is not arbitrary, but follows a clear principle. The more strongly a measure interferes with liberty, property or privacy, the higher the level of oversight.

Typically, a distinction is made between:

• simple investigative orders by the public prosecutor’s office
• serious coercive measures that require judicial authorisation

This differentiation protects those affected from excessive interferences and prevents a concentration of power in the prosecuting authority. The court acts as an independent supervisory body where the interference is particularly serious.

Focus on proportionality and fundamental rights protection

Proportionality is the central guiding principle of every coercive measure. The court examines not only whether a measure is provided for by law, but also whether it appears suitable, necessary and appropriate.

In doing so, it asks in particular the following questions:

• Does the measure actually achieve the intended investigative objective?
• Is there a less intrusive measure with comparable effect?
• Is the interference proportionate to the seriousness of the allegation?

This review is carried out specifically in the individual case and is guided by the fundamental rights affected. Deprivation of liberty, interferences with the inviolability of the home or with the secrecy of communications require particularly careful reasoning.

Judicial oversight compels the investigative authorities to provide comprehensible reasons for their applications. This strengthens practical protection of fundamental rights and prevents schematic decisions.

Your Benefits with Legal Assistance

Coercive measures often arise unexpectedly and create considerable pressure. Anyone who acts in this situation without legal advice risks strategic mistakes with long-term consequences.

A specialised defence:

• reviews the lawfulness of the authorisation
• applies for the review or lifting of disproportionate measures
• develops a clear defence strategy for the further proceedings

Early intervention can shorten deprivation of liberty, secure assets and challenge the taking of evidence on legal grounds. In addition, a structured defence consistently safeguards procedural rights from the outset.

Especially in the case of highly intrusive measures, the initial response often determines the further course of the criminal proceedings. Sound legal representation provides legal clarity and strategic certainty in this context.

FAQ – Frequently Asked Questions