noun
Legal term for a person held in custody, typically in a detention facility or prison.
拘禁者の人権は国際法で保護されている。
The human rights of detainees are protected under international law.
Refers to a person under short-term detention (拘留), while 拘禁者 is broader and includes longer-term custody.
Compound of 拘禁 (confinement, detention) and 者 (person).