The document discusses rules of arrest under Philippine national law. It defines arrest and outlines the differences between civil and criminal law. There are two types of arrest - arrest with a warrant and warrantless arrest. When making an arrest, officers must respect the custodial rights of suspects. After arrest, a suspect can only be detained for a certain period of time depending on the crime before they must be charged. A preliminary investigation is also usually required before filing a complaint in court. The document outlines the rights of the accused during this investigation and trial.