# 少年法 / Juveniles Act — 第九条 (Article 9) This is the Markdown twin of https://japanlaw.org/en/juvenile-act/art-9. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp. - Law: 少年法 (Juveniles Act), 昭和二十三年法律第百六十八号 - English title "Juveniles Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第九条 (Article 9)（調査の方針） — address `art-9` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/juvenile-act/art-9 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000168/art-9 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第九条（調査の方針） — (Investigation Policy) caption: Ministry of Justice translation — Japanese Law Translation Database System art-9 · https://japanlaw.org/en/juvenile-act/art-9 · https://japanlaw.org/l/323AC0000000168/art-9 **第一項** 前条の調査は、なるべく、少年、保護者又は関係人の行状、経歴、素質、環境等について、医学、心理学、教育学、社会学その他の専門的智識特に少年鑑別所の鑑別の結果を活用して、これを行うように努めなければならない。 art-9/par-1 · https://japanlaw.org/en/juvenile-act/art-9/par-1 · https://japanlaw.org/l/323AC0000000168/art-9/par-1 The investigation prescribed in the preceding Article must be carried out by making use of medical, psychological, pedagogical, sociological and any other specialized knowledge as much as possible, regarding conduct, background, temperament, and environment of the juvenile, the parent or guardian, and other concerned persons, and in particular, the results of classifications conducted by the juvenile classification home. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-9/par-1: 前条 → 少年法 第八条 (Article 8), art-8 — https://japanlaw.org/en/juvenile-act/art-8 · https://japanlaw.org/l/323AC0000000168/art-8 ## Cited by 1 provision cites this one. No official source publishes this direction. - 少年法 第五十条第一項（審理の方針） — https://japanlaw.org/en/juvenile-act/art-50/par-1 · https://japanlaw.org/l/323AC0000000168/art-50/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 少年法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/323AC0000000168/20260624_508AC0000000046), retrieved 2026-11-02 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Juveniles Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4827/tb), retrieved 2026-11-02 - This site's parser, version 220 — 少年法 — structure, counts, cross-references and defined terms, computed 2026-11-02