Detention
Overview
Detention (구금) refers to a legal measure by which the state forcibly restricts an individual's physical liberty and holds them in a certain place. In criminal proceedings, it is broadly divided into custodial detention for investigation and trial, and protective detention for administrative and welfare purposes such as immigration, mental health, and juvenile protection. Article 12 of the Constitution stipulates the warrant requirement and the principle of due process to control abuse of detention powers, and remedies such as the Habeas Corpus Act (인신보호법) are provided for unlawful detention.
Main Content
Concept and Legal Nature
Detention is the strongest restriction on the basic right to physical liberty. Unlike 'arrest,' which temporarily secures a person, detention has a continuous and ongoing character in that it keeps the person confined in a certain facility. Unlawful detention between private individuals is punished as the crime of confinement under Article 276 of the Criminal Act, while state detention requires a legal basis and prescribed procedures, creating a corresponding relationship.
Distinction Between Detention and Arrest
Arrest is a compulsory measure that temporarily secures the person of someone suspected of a crime, whereas detention maintains and continues that secured state. Therefore, arrest can be a prior stage or means of detention, but arrest alone cannot restrain a person for a long period; a court review must be obtained within a certain time.
Detention in Criminal Procedure
Under the Criminal Procedure Act, detention is largely divided into arrest and custody. A prosecutor or judicial police officer may arrest a person when there is probable cause for a crime and a risk of flight or destruction of evidence, and must request a detention warrant within 48 hours after arrest. The court decides whether to detain through a substantive examination of the detention warrant, and the detention period for a detained suspect is in principle 10 days and may be extended by 10 days, up to a maximum of 20 days. After indictment, the detention period is two months and may be renewed in two-month units by decision of the trial court. The review of the legality of detention and the bail system are procedures for resolving detention when its necessity has ceased or it is unjust.
Administrative Detention
Administrative detention includes protection of foreigners under the Immigration Act (confinement in protection facilities, three months and a three-month extension), protective hospitalization under the Mental Health Welfare Act, consignment to a juvenile classification and examination center under juvenile protection procedures, and quarantine measures under the Infectious Disease Control and Prevention Act. These are not criminal punishments but are carried out for administrative and welfare purposes; nevertheless, because they restrict physical liberty, they are subject to the same constitutional controls.
Security Measures and Digital Detention
Security measures such as medical treatment and custody, probation, and electronic device attachment (electronic monitoring) also have a detention-like character in a broad sense. In particular, location-tracking electronic device attachment is called 'digital detention' because it constantly restricts everyday freedom without physical confinement, and the issues of double punishment and proportionality are continuously debated.
Procedural Controls and Remedies
Under the constitutional warrant requirement, detention in principle requires a warrant issued by a judge. For unlawful detention, remedies exist such as review of the legality of detention, appeals and quasi-appeals, habeas corpus review under the Habeas Corpus Act, petitions to the National Human Rights Commission of Korea (국가인권위원회), and claims for state compensation and criminal compensation.
International Law and Human Rights Standards
Article 9 of the International Covenant on Civil and Political Rights (ICCPR) provides for the prohibition of arbitrary detention, notification of the grounds for detention, and prompt trial and remedies. The United Nations Standard Minimum Rules for the Treatment of Prisoners (Nelson Mandela Rules, 2015), the Convention against Torture (CAT), and its Optional Protocol (OPCAT) set treatment standards and regular visit systems for detention facilities.
Recent Trends
In 2024–2025, discussions continued on amendments to the Criminal Procedure Act concerning the effectiveness of substantive examination of detention warrants and the calculation of detention periods, and the problem of prolonged pretrial detention due to trial delays came to the fore again. Overcrowding in detention facilities and demands to expand medical and mental health services for detainees also emerged as major agenda items. Human rights debates over the expansion of crimes subject to electronic monitoring and the scope of location information use, as well as National Human Rights Commission investigations and civil society monitoring of treatment in immigration detention facilities and forced deportation procedures, are also active. In addition, there is a growing trend of seeking points of contact between alternatives to detention using digital technology (electronic monitoring, strengthened bail conditions) and restorative justice.
Related Topics
- [[Custody]]
- [[Arrest]]
- [[Warrant requirement]]
- [[Habeas Corpus Act]]
- [[Criminal Procedure Act]]
- [[Bail]]
- [[National Human Rights Commission of Korea]]