Consider the following statements:

1. Under the Constitution, the Union has a duty to protect every State against internal disturbance.

2. A person under preventive detention has an absolute, unqualified constitutional right to consult a lawyer of choice at every stage of detention.

3. Under the Prevention of Terrorism Act (POTA), 2002, a confession made by an accused before a police officer of a specified rank was made admissible as evidence, departing from the ordinary rule under the Indian Evidence Act.

How many of the statements given above are correct?