nA person who has been convicted of a crime,
has exhausted all
normal appellate remedies, and is confined to prison may still challenge his or her conviction, sentence, or conditions of
confinement by filing a petition for a writ of habeas corpus.
nHabeas corpus is an ancient common-law device
that permits judges to
review the legality of someone’s confinement.
nIn modern American criminal procedure, habeas
corpus has become a way
for prisoners who have exhausted all other avenues of appeal to attempt to obtain further judicial review.