Sui juris

What sui juris means

In short, sui juris definition is a term you will meet in court papers, rules and legal research. The definition above gives its usual meaning in American civil practice. However, the exact meaning can depend on the rule, statute or court decision that uses it. So it helps to read the term in context.

Where sui juris definition comes up

The term is used across many kinds of cases. For example, you may see it in pleadings, motions and court orders. To see it in context, browse the motions and procedures library or the Learn the Law topics.

How to research the term

First, read the term where it actually appears. A rule, statute or court decision may define it for its own purposes. Next, check whether your court has a local rule that uses sui juris definition in a special way. Then look at recent decisions from courts in your jurisdiction. They show how judges apply the term today. Also, remember that state law can differ from federal law. For that reason, use our state procedures guide to find your state’s rules. Finally, confirm every source is current before you rely on it.

You can read the current federal court rules online for free.

Related legal terms

• Subpoena: a court command requiring a person to appear and testify or to produce documents or things.
• Subpoena duces tecum: a subpoena that requires the person to produce documents or other things.
• Summary judgment: judgment without a trial because there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.
• Summons: a court-issued document that notifies a defendant of a lawsuit and the time to respond. It is served with the complaint.

Why precise terms matter

Legal words often look like everyday words, but they can carry a precise meaning. Because of that, a small misreading can change how you understand a deadline, a duty or a right. Our glossary keeps each definition short and links it to the procedures where it matters.