Under Article 22 of the Indian Constitution and laws like the National Security Act (NSA), 1980, a preventive detention order can be issued for a maximum of three months without requiring the approval of an Advisory Board. Preventive detention allows authorities to detain a person to prevent acts prejudicial to state security or public order. If detention is to extend beyond three months, the case must be reviewed by an Advisory Board, which assesses the justification for continued detention. This safeguard ensures that prolonged detention without review is avoided, balancing security needs with individual rights.