What is the purpose of a writ of habeas corpus?

The purpose of a writ of habeas corpus is to safeguard an individual's right to be free from unlawful detention. When a writ is issued, it compels the custodian of a prisoner, typically a jailer or warden, to present the detainee before the court. This requirement allows the court to assess whether the detention is lawful and justified. It serves as a critical check on executive power, ensuring that no one is held without sufficient legal cause and that their rights are protected in the judicial system.

This mechanism is rooted in the principle of due process, emphasizing that the state must have a valid legal basis for depriving someone of their liberty. The other options address different rights and legal concepts, but they do not pertain to the specific function of a writ of habeas corpus, which is focused entirely on the legality of an individual's detention.