Explanation:

First is correct while second is incorrect.
Habeas Corpus is a bulwark of individual liberty against arbitrary detention.
It is an order issued by the court to a person who has detained another person, to produce the body of the latter before it. The court then examines the cause and legality of detention. It would set the detained person free, if the detention is found to be illegal.
The writ of habeas corpus can be issued against both public authorities as well as private individuals. The writ, on the other hand, is not issued where the (a) detention is lawful, (b) the proceeding is for contempt of a legislature or a court, (c) detention is by a competent court, and (d) detention is outside the jurisdiction of the court.