Answer : 3. "Only the detained person can apply for the writ "
Explanation :

The incorrect statement about Habeas Corpus among the options provided is: "Only the detained person can apply for the writ."

In reality, Habeas Corpus can be applied for by anyone, not just the detained person. This legal remedy is often used to protect individuals from unlawful detention, and friends, family members, or even organizations can file a petition for the writ on behalf of the person being held. So, the correct answer is the third statement, "Only the detained person can apply for the writ."