institutions shall be conducted by investigators of prosecutorial institutions, and the preliminaries of other ordinary criminal cases shall be done by investigators of people’s safety institutions. Article 49 (Jurisdiction of Special Preliminaries Institutions) Preliminaries for military criminal cases, criminal cases of violating military work, or for ordinary criminal cases committed by a soldier, people’s safety officials or an employee of a military institution shall be done by an investigator of a military prosecutorial institution. Preliminaries for ordinary criminal cases committed by an employee of the munitions industry sector and ordinary criminal cases in violation of work in the munitions industry sector shall be done by an investigator in the munitions sector legal institution. Preliminaries for ordinary crimes related to administrative and economic work in the railway transportation sector and ordinary criminal cases raised in the process of surveillance of law observance and fulfilment of a railway transportation sector legal institution shall be done by an investigator of the railway prosecutorial institution and preliminaries of other ordinary criminal cases committed by employees of the railway transportation sector and ordinary criminal cases of violating the work of the railway transportation sector shall be done by an investigator of the railway people’s safety institution. Article 50 (Jurisdiction of People’s Courts) People’s Courts shall try ordinary criminal cases that are not included in the jurisdictions of the Province Court or Court of municipality directly under central authority, Special Courts and the highest Court. Article 51 (Jurisdiction of Province Court) Province Courts or Courts of municipalities directly under central authority shall try at first instance ordinary criminal cases indicted under articles of law that require crimes against the nation and the people, the death penalty or life-time terms of reform through labour. It may directly try criminal cases included in the jurisdiction of People’s Courts in the Province or the municipality directly under central authority, or send it to another People’s Court as necessary. They shall try on appeal appeals and complaints about the judgments of People’s Courts in the Province or the municipality directly under central authority. Article 52 (Jurisdiction of Special Court) Military tribunals shall try military criminal cases, criminal cases that have violated military work, and criminal cases committed by soldiers, people’s safety officials, and employees of military institutions. Military tribunals shall try criminal cases committed by an employee of the munitions industry sector and criminal cases of violating the work of the munitions industry sector. Railway Courts try criminal cases committed by employees of the railway transportation sector and criminal cases of violating the work of the railway transportation sector. Article 53 (Jurisdiction of the Highest Court)