In most modern American jurisdictions, a "writ" is an order from a higher court to a lower court or to a government official such as a prison warden. Defendants may seek several types of writs from appellate judges directed at the trial court or at a lower appellate court. (Many states have two levels of appellate courts -- an intermediate appellate court and the state supreme court.)
Writs, like appeals, are complex and involve picky details. Defendants facing situations where they may be entitled to take a writ should consult counsel.
Proof & Defenses in Criminal Cases
Getting a Lawyer for your Criminal Case
Steps in a Criminal Defense Case
Arraignment: Your First Court Appearance
Plea Bargains (Deals) in a Criminal Case
Legal Elements of Common Crimes
Expungement & Criminal Records
Should I just plead guilty and avoid a trial?
Is the public defender a real lawyer?
Can I change defense lawyers after I've hired one?
How long after arrest do I find out what the charges are?
Does it matter whether a suspect is given the Miranda warning?