Detention Review and Complaint Against Detention in Germany

By Dr. Julius Hagen, Attorney-at-Law

Defence Against a Detention Warrant and Continued Pre-Trial Detention

Detention review and complaints against detention are the central legal tools for challenging pre-trial detention in Germany. They pursue similar goals, but they do not work in the same way and are not strategically interchangeable.

When detention review or a complaint becomes relevant

Once a detention warrant has been issued, the legal position is not fixed. Even during ongoing pre-trial detention, it may be possible to argue that the warrant should be lifted, suspended, or reassessed in light of changed circumstances. For suspects and family members, it is often unclear which route should be taken first.

The issue is not simply to “do something against detention”, but to choose the right procedural tool at the right time and support it with credible facts.

The difference between detention review and a complaint against detention

Detention review is aimed at a renewed judicial examination of whether the warrant should remain in force. It can be especially important where new facts need to be introduced, for example regarding personal ties, residence, employment, health, or the question whether less intrusive measures would be sufficient. In appropriate cases, an oral detention review hearing may matter greatly, especially where the court’s personal impression of the suspect or newly presented circumstances could influence the result.

A complaint against detention, by contrast, is generally directed at having an existing detention decision reviewed by a higher court. It may be the better route where the challenged decision is legally or factually flawed and the case does not primarily depend on presenting new facts in an oral hearing. These two options therefore follow different procedural logics.

Why choosing the right remedy is a strategic decision

In practice, the answer depends on the procedural situation. Before indictment, for example, it matters whether there is new material concerning strong suspicion or the detention ground, whether an oral hearing is likely to help, and whether the more promising course is to confront the original detention judge or a higher complaint court with the defence arguments. In practice, new circumstances and the court’s personal impression in an oral detention review hearing can carry considerable weight.

An unstructured combination of remedies or a rushed application may create tactical disadvantages. That is why detention defence usually requires a careful assessment of the case file, a focused attack on the detention ground, and a deliberate choice between detention review, a complaint against detention, or an application to suspend the warrant.

Which attack points matter most in detention cases

A detention warrant can stand only if there is strong suspicion, a statutory detention ground, and overall proportionality.

Defence against pre-trial detention therefore usually concentrates on exactly those points:

• Is the suspicion really as strong as claimed?
• Is there concrete evidence of a risk of absconding, or only a general assumption?
• Is there real support for an alleged risk of tampering with evidence?
• Would measures under Section 116 of the German Code of Criminal Procedure not be enough?

Especially where the suspect has stable personal ties, employment, family responsibilities, an organised living situation, or relevant health issues, the decisive question is often not the accusation alone, but whether detention is truly unavoidable. Many effective arguments in custody cases therefore focus on undermining the alleged detention ground and presenting a credible alternative to imprisonment.

The special importance of continued-detention review

The longer pre-trial detention lasts, the more important proportionality and the duty of procedural speed become. At a certain point, the question is no longer only whether detention was lawful at the outset, but whether it may still continue. Under German law, detention exceeding six months requires a special judicial review.

For that reason, defence in custody matters is not a one-off filing. It is an ongoing process that requires close monitoring of how the detention situation develops.

Why early action matters so much

In detention cases, delay and the wrong priorities can cause immediate damage. Attention often focuses first on the allegation itself, even though other issues may be just as important for custody: personal ties, availability, possible conditions, stability, health, and whether the detention ground still exists in its original form.

Specialised detention defence therefore means treating detention review and complaints against detention not as isolated procedural steps, but as part of one overall strategy involving statements, investigative measures, searches, seizures, and the wider course of the criminal case.

Experience in Detention Defence

Custody cases rarely turn on abstract legal knowledge alone. What matters is whether the right documents, exculpatory information, and persuasive arguments can be assembled within a very short time.

Our work in detention cases focuses on attacking detention grounds in a concrete way, developing realistic alternatives to detention, and making the right procedural choice between detention review, complaint, and further defence steps.