This document discusses laws around piracy, arbitrary detention, and the rights of accused individuals under custodial investigation. It defines piracy under PD 532 as being committed by any person including vessel crew members, while piracy under Article 122 is committed by outsiders. It also notes that PD 532 has qualifying circumstances beyond just murder, rape, homicide, and physical injuries. The document outlines remedies for individuals subjected to warrantless arrest, including requesting a preliminary investigation or submitting to an inquest to determine if continued custody is warranted. Public officers can be held liable for delays in delivering detained persons to judicial authorities.