The writ of habeas corpus protects individuals against:

Unlawful detention
Ex post facto laws
Double jeopardy
Excessive taxation

The correct answer is: Unlawful detention.

Habeas corpus is a legal action, or writ, through which a person can be released from unlawful detention. The writ of habeas corpus is a fundamental right protected by the Constitution of the United States.

Ex post facto laws are laws that make an act criminal after it has been committed. Double jeopardy is being tried twice for the same crime. Excessive taxation is taxation that is too high.

Unlawful detention is the detention of a person without legal justification. This can include detention by the government, by private individuals, or by other organizations. Unlawful detention can be a violation of a person’s civil rights, and it can also be a crime.

There are a number of ways to challenge unlawful detention. One way is to file a writ of habeas corpus. A writ of habeas corpus is a legal action that asks a court to order the release of a person who is being detained unlawfully. Another way to challenge unlawful detention is to file a lawsuit against the person or organization that is detaining the person.

If you believe that you are being detained unlawfully, you should contact an attorney immediately. An attorney can help you understand your rights and can represent you in court if you decide to challenge your detention.