from the victim or institution concerned that had the evidence returned or handed over and it shall be attached to the case record together with the basis document. SECTION III. JURISDICTION Article 45 (Standard for Establishing Jurisdictions) Jurisdictions shall be established using the objective and duties of the legal institution, the crime scene and the gravity of the case as the standard so that cases are not concentrated in one legal institution and can be handled quickly and correctly Article 46 (Investigative Jurisdiction) Detectives shall investigate criminal cases that have happened in their jurisdictional area. The investigation of crimes against the nation and the people shall be done by detectives of the safety and defence institution. The investigation of ordinary crimes that are related to administrative and economic work and ordinary criminal cases that are raised in the process of surveillance of law observance and fulfilment of a legal institution shall be done by a detective in the prosecutorial institution. Investigations of other ordinary criminal cases shall be done by detectives of people’s safety institutions. Article 47 (Jurisdiction of Special Investigative Institutions) Investigation of ordinary criminal cases committed by soldiers, people’s safety officials and employees of military institutions shall be done by detectives of the military prosecutorial institution. Investigation of ordinary criminal cases committed by an employee in the munitions industry sector and of ordinary criminal cases that violate the work of the munitions industry sector shall be done by detectives of the munitions sector legal institution. Investigation of ordinary crimes related to the administrative and economic work of the railway transportation sector and ordinary criminal cases raised in the process of surveillance of law observance and fulfilment of a legal institution in the railway transportation sector shall be done by detectives of the railway prosecutorial institution. Investigation of other ordinary criminal cases committed by an employee of the railway transportation sector and ordinary criminal cases that violate the work of the railway transportation sector shall be done by detectives of the railway people’s safety institution. Article 48 (Jurisdiction of Preliminaries) An investigator shall conduct preliminaries for criminal cases which have happened in his or her jurisdictional area. In necessary cases, the investigator with jurisdiction over the area where the criminal lives or the area where the criminal case was identified may conduct the preliminaries after informing the investigator of the jurisdictional area. The preliminaries of crimes against the nation and the people shall be done by an investigator of the safety and defence institution. Preliminaries of ordinary crimes related to administrative and economic work and ordinary criminal cases raised in the process of surveillance of law observance and fulfilment of legal