A public prosecutor must institute prosecution when said prosecutor deems the request set forth in Article 262, paragraph (1) to be reasonable.
検察官は、第二百六十二条第一項の請求を理由があるものと認めるときは、公訴を提起しなければならない。
Read this with the articles around it
public prosecutor
検察官
The official who brings a prosecution (公訴) for a crime before a court (Code of Criminal Procedure, Article 247), and who may decide not to prosecute where, in view of the offender's character, age and circumstances, the gravity and circumstances of the offence and what happened after it, prosecution is not needed (Article 248). In criminal cases a public prosecutor asks the court to apply the law correctly and oversees the carrying out of its judgments; and, as the representative of the public interest, a public prosecutor also does the work other laws and regulations assign to a public prosecutor, which is not limited to criminal cases (Public Prosecutors Office Act, Article 4). A public prosecutor may investigate any crime (Article 6, paragraph (1)). Public prosecutors work through the public prosecutors offices (検察庁): the Supreme, High, District and Local Public Prosecutors Offices (Article 1).
Written by AI using Code of Criminal Procedure, Arts. 247, 248 and Public Prosecutors Office Act, Arts. 1, 4, 6 as a reference.