A more thorough explanation:

Cassation: A legal term that means to quash or annul a decision made by a lower court. The Court of Cassation is the highest court in France and has the power to overturn decisions made by lower courts.

For example, if a lower court makes a decision that is deemed to be incorrect or unfair, the Court of Cassation can be asked to review the case and overturn the decision. This can happen in criminal cases, civil cases, and administrative cases.

Another example is if a lower court makes a decision that goes against the law or violates someone's rights, the Court of Cassation can step in and correct the mistake.

These examples illustrate how the Court of Cassation serves as a check on the decisions made by lower courts. It ensures that justice is served and that the law is upheld.