Definition for Jurisdiction?

I need a 2-4 sentence definition for jurisdiction
Answers:
Jurisdiction is the authority of a court to decide matters based of geographic area, the nature of a complaint or offense, or the citizenship of the principals involved in the dispute or infraction. Jurisdiction can also apply to law enforcement organizations such as the police or government agencies who enforce specific areas of law.

Thats a long winded answer in my owns words. You could find a shorter more precise answer in a course book on law but it might not be 2 sentences.

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1.Law The right and power to interpret and apply the law: courts having jurisdiction in this district.

2. Authority or control: islands under U.S. jurisdiction; a bureau with jurisdiction over Native American affairs.
The extent of authority or control: a family matter beyond the school's jurisdiction.

3.The territorial range of authority or control.

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Jurisdiction - The territory within which legal power can be exercised

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If you are talking about court jurisdiction then your teacher needs to be more specific.

Is he/she talking about subject matter jurisdiction or personal jurisdiction which are two completely different animals.