A more thorough explanation:

Definition: A writ of supervisory control is a legal order issued by a higher court to correct a mistake made by a lower court. This writ is used when there is no other way to correct the mistake and the mistake will cause a great injustice.

Example: Let's say a lower court judge makes a ruling that is clearly wrong and will cause a great injustice. The party affected by the ruling can file a writ of supervisory control with a higher court. The higher court will then review the lower court's ruling and issue an order to correct the mistake.

Another example: A lower court judge may make a ruling that goes against a state law or the state constitution. In this case, a writ of supervisory control can be filed with a higher court to correct the mistake and ensure that the law is followed.

These examples illustrate how a writ of supervisory control can be used to correct a mistake made by a lower court. It is an important legal tool that helps ensure justice is served.