The main objective of law enforcement agencies is deterring possible criminal activities and preventing the successful commission of crimes in progress in order to provide the society a secure and safe environment, and maintain the public order. Additionally, law enforcement is charged with the responsibilities of maintaining law, and working in partnership with public authorities in order to apply the decisions made by them. Based on the responsibilities of police force, we can basically point out about its two main objectives: Pre-crime administrative law enforcement duties and after crime judicial law enforcement duties. In general, there is not any controversy about the administrative duties. However, there are various approaches and controversies concerning organizition of the police force as judicial law enforcement agency for its judicial duties and activities. The duties of judicial law enforcement and the relations with Prosecutor of the Republic are defined by Article 5271 of the Turkish Criminal Procedure Code. Main criticisms center around non-existence of an independent organization of judicial law enforcement and the influence of relations between law enforcement agency and prosecutor on investigations at the current situa tion, even though the Code has been in force for almost 10 years. In this research, we try to analyze the regulations made on judicial law enforcement in order to improve the efficiency of criminal justice system.