Detention Conditions in Extradition Proceedings

By Dr. Julius Hagen, Attorney at Law

When detention conditions can prevent extradition

Extradition must not be carried out where there are substantial grounds for believing that the person faces a real risk of inhuman or degrading treatment in the destination state. The controlling standards include Article 3 ECHR and the mandatory human-rights limits on German mutual legal assistance under section 73 IRG. In European Arrest Warrant proceedings, the same absolute protection is guaranteed by Article 4 of the EU Charter.

Not every difference from German prison standards constitutes a bar to extradition. The question is whether the conditions actually expected, assessed cumulatively, cross the threshold of inhuman or degrading treatment. The objection must therefore identify concrete indications and connect them to the individual position of the requested person.

The court’s duty to investigate

Where credible material indicates a human-rights risk, the Higher Regional Court cannot stop at general statements from the requesting state. It must investigate the decisive facts of its own motion. The assessment is not confined to an obvious single defect; it must address the cumulative effect of all conditions the person is likely to face.

Mutual trust is the starting point in EAW proceedings. It is rebutted, however, where objective, reliable, specific and up-to-date material establishes a real risk. Protection under Article 4 of the Charter cannot then be balanced against the efficiency of surrender or mutual trust.

The two-stage assessment under a European Arrest Warrant

At the first stage, the court examines whether there are systemic or general deficiencies or whether particular prisons or groups of prisoners are especially affected. Relevant material may include decisions of national and international courts, reports by the European Committee for the Prevention of Torture (CPT), material from other international organisations and current prison reports with a transparent methodology.

At the second stage, the court must determine whether this particular person would face a real risk after surrender. This requires clarification of the expected prison, the form of detention, foreseeable transfers, likely duration and individual vulnerabilities. A general assessment of the country cannot replace that individual forecast.

Which prison is the person actually likely to enter?

The assessment must cover the prison or prisons in which the person is likely to be held after surrender. Remand detention, sentenced imprisonment and temporary reception may take place under different conditions. Foreseeable transfers must also be considered. Adequate conditions in one named prison do not answer the risk if later detention elsewhere is realistic.

If the future place of detention remains uncertain, specific information must be requested from the issuing or requesting authority and, where appropriate, the responsible prison authority. An unclear answer cannot be replaced by an assumption that accommodation will comply with human-rights standards.

Personal space, overcrowding and the cumulative assessment

In a multi-occupancy cell, personal space below 3 square metres creates a strong presumption of a violation of Article 3 ECHR under the case law of the European Court of Human Rights. That presumption can be rebutted only exceptionally, particularly where the reduction is short, occasional and minor, sufficient freedom of movement outside the cell is available and the remaining conditions are appropriate.

Where personal space is between 3 and 4 square metres, it remains a weighty factor. Inadequate outdoor exercise, insufficient daylight, poor ventilation, extreme temperatures, lack of toilet privacy and deficient sanitation may make the conditions incompatible with Article 3. Even above 4 square metres the analysis does not end: other serious shortcomings may cross the threshold individually or cumulatively.

The court must also consider duration, an individual sleeping place with a bed and clean bedding, adequate food and drinking water, functioning sanitation, protection from violence, contact with the outside world and meaningful activity. These factors must be assessed together rather than in isolation.

The Mandela Rules as an international framework

The United Nations Nelson Mandela Rules are not directly binding and do not, by themselves, create a bar to extradition. They are nevertheless internationally recognised minimum principles for the treatment of prisoners and provide a useful framework for examining actual conditions.

The Rules address humane accommodation with sufficient space, air, light, heating and ventilation, clean premises and sanitation, an individual bed, adequate food and drinking water, and ordinarily at least one hour of open-air exercise each day. They deliberately do not prescribe a universal minimum floor-space figure; personal space must therefore be assessed through the human-rights case law and the conditions as a whole.

Their healthcare standards are particularly important. Prisoners should have access to care broadly equivalent to that available in the community, with continuity of treatment, necessary medication, emergency services, specialist care and professional independence of clinical staff. The Mandela Rules also prohibit indefinite or prolonged solitary confinement; more than 15 consecutive days is treated as prolonged.

Health and individual vulnerability

Illness, disability, pregnancy, advanced age, suicide risk, trauma or a particular exposure to violence may materially alter the assessment. A general reference to a prison clinic or the theoretical availability of treatment is not enough. The court may need information about diagnostics, specialists, medication, accessibility, transport and practical protection in the expected facility.

Medical records should therefore be secured early, translated where necessary and connected to the actual prison conditions. The decisive question is not merely whether treatment exists in principle, but whether it will be available promptly and in practice.

Which sources are reliable?

Sources should be current, facility-specific and methodologically transparent. CPT reports can carry particular weight because delegations repeatedly inspect places of detention, sometimes without notice, review records and conduct confidential interviews with prisoners against detailed criteria. Decisions of courts, reports from UN bodies and reputable non-governmental organisations, and reliable occupancy and healthcare data may also be important.

A short, announced or prison-management-led visit is not automatically equivalent. Its value depends on which areas were actually inspected, whether prisoners could speak without supervision, which criteria were applied and whether findings were recorded for the particular facility. Nearly identical short reports about different institutions may call for careful scrutiny of their methodology and independence.

The defence should identify contradictions and explain why one source is more probative than another. Publication date, research method, type of detention, areas inspected and material changes since the visit must all be considered.

Assurances from the requesting state

An assurance may remove a concrete risk if it comes from a competent authority, precisely identifies the actual prison and the relevant conditions, and is reliable in practice. Its duration, continued effect after a transfer, available monitoring and the state’s record of complying with comparable assurances are also relevant.

General statements that human rights will be respected are normally insufficient where substantial contrary material exists. Even an assurance carrying significant institutional weight must answer the identified risk. If the prison, personal space, medical care or monitoring remains unclear, targeted follow-up questions are required; surrender cannot proceed while a real risk persists.

Extradition outside the EAW system

For third-country extradition, the assessment is governed in particular by Article 3 ECHR, section 73 IRG and minimum rules of international law recognised within the German legal order through Article 25 of the Basic Law. The concrete risk in the requesting state remains decisive. Differences in the cooperation framework do not dilute the absolute prohibition of inhuman or degrading treatment.

The method developed in EAW cases is therefore also useful in conventional extradition proceedings: obtain current and reliable material, identify the probable detention setting, assess individual risks and require a specific answer or assurance for every unresolved concern.

What the defence should establish

A substantiated objection connects general evidence with the individual case. Relevant material may include the extradition request or EAW, information about the likely prison, current detention reports, medical records, medication plans, previous detention or treatment and evidence of particular vulnerability.

We compare the requesting state’s information with independent sources, assess conflicting reports by reference to their methodology and formulate focused questions about accommodation, healthcare, protection and monitoring. Where arrest, extradition detention or imminent surrender is involved, this material should be secured without delay.