Accused can be arrested after the registration of the case by the approval/orders of the concerned authorities. The accused will be arrested either during the investigation or after the investigation depending upon the requirements of the case scenario. If the circumstances become unavoidable during the investigation, the accused public servant can be arrested immediately. The primary requirement is the approval of the judicial action by the concerned authorities depending upon the grade of accused public servant. Whereas, in case of trap raid no such permission for sanction for prosecution is required.