The document summarizes Section 167 of the Criminal Procedure Code relating to procedures when an investigation cannot be completed within 24 hours of arrest. It provides 3 key points: 1) If an investigation is not completed within 24 hours, the investigating officer must transmit case diary entries to the nearest magistrate and forward the accused. 2) The magistrate may authorize detention in custody for up to 15 days total, and may extend judicial custody for a maximum of 90 or 60 days depending on the offense. 3) The accused must be produced before the magistrate in person for any custody authorization, and is entitled to bail after the maximum custody period unless charges are filed.