Writ of Habeas Corpus
Section 9, Clause 2 of the U.S. Constitution.
"The privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it. "
[New Latin, literally, you should have the body for submitting]
First appeared 1768
: a writ for inquiring into the lawfulness of the restraint of a person who is imprisoned or detained in another's custody