Consider the following statements: 1. According to the Constitution of India, the Central Government has a duty to protect States from internal disturbances. 2. The Constitution of India exempts the States from providing legal counsel to a person being held for preventive detention. 3. According to the Prevention of Terrorism Act, 2002, confession of the accused before the police cannot be used as evidence. How many of the above statements are correct? [UPSC CSP 2023]