This document defines and classifies offences under Indian law. It defines an offence as any act punishable under the Penal Code or by any other law. Offences are classified as either seizable or non-seizable. Seizable offences allow police to make arrests without a warrant and are more serious, while non-seizable offences do not permit arrest without a warrant and are less serious. The procedures for investigating seizable and non-seizable offences differ, with seizable offences allowing police broader powers to investigate without a judicial order.