Illegal detention refers to the unlawful holding of an individual by authorities without proper legal justification. This can occur when a person is arrested without a warrant, held beyond the legal time limit without charges, or detained without due process. Such actions violate a person's rights and can lead to serious legal consequences for the detaining authority. Victims of illegal detention may experience physical and psychological harm, as well as disruption to their personal and professional lives. Organizations like Amnesty International work to raise awareness about illegal detention and advocate for the rights of those affected, emphasizing the importance of legal protections and accountability.