Indonesia is a country of law and is not based on mere power, all state power is governed by law. Criminal law is the rule of conducting a public order by prohibiting what is contrary to the law and giving a message to those who violate the prohibition. To enforce material criminal law requires formal law (criminal procedural law). The handling of criminal cases in principle comes from investigation, investigation, prosecution, and ends with a judge's ruling. At the investigation stage, the investigator is authorized to detain suspects whose implementation is regulated in the Criminal Procedure Code to realize legal certainty