# 不正競争防止法 / Unfair Competition Prevention Act — 第三十七条 (Article 37)

- Law: 不正競争防止法 (Unfair Competition Prevention Act), 平成五年法律第四十七号
- English title "Unfair Competition Prevention 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: 第三十七条 (Article 37)（共助の実施） — address `art-37`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/en/unfair-competition-prevention-act/art-37
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/405AC0000000047/art-37
- 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.

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### 第三十七条（共助の実施） — (Provision of Mutual Assistance)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-37 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37 · https://japanlaw.org/l/405AC0000000047/art-37</sup>

**第一項**  外国の刑事事件（当該事件において犯されたとされている犯罪に係る行為が日本国内において行われたとした場合において、当該行為が第二十一条第一項、第二項、第四項（第四号を除く。）、第五項又は第六項の罪に当たる場合に限る。）に関して、当該外国から、没収若しくは追徴の確定裁判の執行又は没収若しくは追徴のための財産の保全の共助の要請があったときは、次の各号のいずれかに該当する場合を除き、当該要請に係る共助をすることができる。
<sup>art-37/par-1 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1 · https://japanlaw.org/l/405AC0000000047/art-37/par-1</sup>
If a foreign state requests assistance in the enforcement of a final and binding decision on confiscation or the collection of equivalent value, or in the freezing of assets related to confiscation or the collection of equivalent value in connection with a criminal case in that foreign state (limited to cases where the act constituting the alleged offence would also constitute an offence under Article 21, paragraph (1), (2), (4) (excluding item (iv)), (5), or (6), had it been committed in Japan), assistance may be provided unless the relevant case falls under any of the following items:
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **一**  共助犯罪（共助の要請において犯されたとされている犯罪をいう。以下この項において同じ。）に係る行為が日本国内において行われたとした場合において、日本国の法令によればこれについて刑罰を科すことができないと認められるとき。
  <sup>art-37/par-1/item-1 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-1</sup>
  it would be considered impossible to impose a punishment under Japanese laws and regulations if the act constituting the offence for which assistance is requested (meaning an offence alleged to have been committed in the request for assistance; the same applies in this paragraph below) had been committed in Japan;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **二**  共助犯罪に係る事件が日本国の裁判所に係属するとき、又はその事件について日本国の裁判所において確定判決を経たとき。
  <sup>art-37/par-1/item-2 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-2 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-2</sup>
  when the offence for which assistance is requested is pending before a Japanese court, or when a final and binding judgment has been issued on the case by a Japanese court;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **三**  没収の確定裁判の執行の共助又は没収のための保全の共助については、共助犯罪に係る行為が日本国内において行われたとした場合において、要請に係る財産が日本国の法令によれば共助犯罪について没収の裁判をし、又は没収保全をすることができる財産に当たるものでないとき。
  <sup>art-37/par-1/item-3 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-3 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-3</sup>
  in cases where assistance is required for the enforcement of a final and binding decision on confiscation, or for assistance in the freezing of assets related to confiscation, the assets subject to the request are not to be subjected to a judicial decision on confiscation in connection with the offence for which assistance is requested, nor are they to be eligible for the direct freezing of assets in connection with that offence under Japanese laws and regulations, had the act constituting the offence for which assistance is requested been committed in Japan;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **四**  追徴の確定裁判の執行の共助又は追徴のための保全の共助については、共助犯罪に係る行為が日本国内において行われたとした場合において、日本国の法令によれば共助犯罪について追徴の裁判をし、又は追徴保全をすることができる場合に当たるものでないとき。
  <sup>art-37/par-1/item-4 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-4 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-4</sup>
  in cases where assistance is required for the enforcement of a final and binding decision on the collection of equivalent value, or for assistance in the freezing of assets related to the collection of equivalent value, if the act constituting the offence for which assistance is required is one for which a judicial decision on the collection of equivalent value could not be issued, or the collection of equivalent value could not be conducted, under Japanese laws and regulations, had the act been committed in Japan;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **五**  没収の確定裁判の執行の共助については要請に係る財産を有し又はその財産の上に地上権、抵当権その他の権利を有すると思料するに足りる相当な理由のある者が、追徴の確定裁判の執行の共助については当該裁判を受けた者が、自己の責めに帰することのできない理由により、当該裁判に係る手続において自己の権利を主張することができなかったと認められるとき。
  <sup>art-37/par-1/item-5 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-5 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-5</sup>
  in cases where assistance is required for the enforcement of a final and binding decision on confiscation, a person that is believed to have assets related to the request, or that holds superficies, a mortgage, or any other rights on those assets, or in cases where assistance is required for the enforcement of a final and binding decision on the collection of equivalent value, a person subject to the judicial decision that was unable to claim their rights in the proceedings due to grounds not attributable to them; or
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **六**  没収又は追徴のための保全の共助については、要請国の裁判所若しくは裁判官のした没収若しくは追徴のための保全の裁判に基づく要請である場合又は没収若しくは追徴の裁判の確定後の要請である場合を除き、共助犯罪に係る行為が行われたと疑うに足りる相当な理由がないとき、又は当該行為が日本国内で行われたとした場合において第三十五条第一項又は前条第一項に規定する理由がないと認められるとき。
  <sup>art-37/par-1/item-6 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-6 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-6</sup>
  in cases where assistance is required for the freezing of assets related to confiscation or the collection of equivalent value, except in requests based on a judicial decision on the freezing of assets related to confiscation or the collection of equivalent value rendered by a court or judge of a requesting country, or except in requests made after the final and binding decision on confiscation or the collection of equivalent value, there is no probable cause to suspect that the act constituting the offence for which assistance is requested has been committed, or it is considered that there would be no grounds under Article 35, paragraph (1), or paragraph (1) of the preceding Article, had the act been committed in Japan.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第二項**  地上権、抵当権その他の権利がその上に存在する財産に係る没収の確定裁判の執行の共助をするに際し、日本国の法令により当該財産を没収するとすれば当該権利を存続させるべき場合に当たるときは、これを存続させるものとする。
<sup>art-37/par-2 · https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-2 · https://japanlaw.org/l/405AC0000000047/art-37/par-2</sup>
In providing assistance for the enforcement of a final and binding decision on confiscation regarding assets encumbered by superficies, a mortgage, or any other rights, those rights must be affirmed as continuing to exist if Japanese laws and regulations require this when the assets are confiscated.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-37/par-1: 第二十一条第一項 → 不正競争防止法 第二十一条第一項 (Article 21, paragraph (1)), art-21/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-1 · https://japanlaw.org/l/405AC0000000047/art-21/par-1
- art-37/par-1: 第二項 → 不正競争防止法 第二十一条第二項 (Article 21, paragraph (2)), art-21/par-2 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-2 · https://japanlaw.org/l/405AC0000000047/art-21/par-2
- art-37/par-1: 第四項 → 不正競争防止法 第二十一条第四項 (Article 21, paragraph (4)), art-21/par-4 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-4 · https://japanlaw.org/l/405AC0000000047/art-21/par-4
- art-37/par-1: 第四号 → 不正競争防止法 第二十一条第四項第四号 (Article 21, paragraph (4), item (iv)), art-21/par-4/item-4 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-4/item-4 · https://japanlaw.org/l/405AC0000000047/art-21/par-4/item-4
- art-37/par-1: 第五項 → 不正競争防止法 第二十一条第五項 (Article 21, paragraph (5)), art-21/par-5 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-5 · https://japanlaw.org/l/405AC0000000047/art-21/par-5
- art-37/par-1: 第六項 → 不正競争防止法 第二十一条第六項 (Article 21, paragraph (6)), art-21/par-6 — https://japanlaw.org/en/unfair-competition-prevention-act/art-21/par-6 · https://japanlaw.org/l/405AC0000000047/art-21/par-6
- art-37/par-1/item-1: この項 → 不正競争防止法 第三十七条第一項 (Article 37, paragraph (1)), art-37/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1 · https://japanlaw.org/l/405AC0000000047/art-37/par-1
- art-37/par-1/item-6: 第三十五条第一項 → 不正競争防止法 第三十五条第一項 (Article 35, paragraph (1)), art-35/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-35/par-1 · https://japanlaw.org/l/405AC0000000047/art-35/par-1
- art-37/par-1/item-6: 前条第一項 → 不正競争防止法 第三十六条第一項 (Article 36, paragraph (1)), art-36/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-36/par-1 · https://japanlaw.org/l/405AC0000000047/art-36/par-1

## Cited by

3 provisions cite this one. No official source publishes this direction.

- 不正競争防止法 第三十七条第一項第一号（共助の実施） — https://japanlaw.org/en/unfair-competition-prevention-act/art-37/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-37/par-1/item-1
- 不正競争防止法 第三十九条第一項（要請国への共助の実施に係る財産等の譲与） — https://japanlaw.org/en/unfair-competition-prevention-act/art-39/par-1 · https://japanlaw.org/l/405AC0000000047/art-39/par-1
- 不正競争防止法 第四十条第一項（組織的犯罪処罰法による共助等の例） — https://japanlaw.org/en/unfair-competition-prevention-act/art-40/par-1 · https://japanlaw.org/l/405AC0000000047/art-40/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 不正競争防止法 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/405AC0000000047/20260521_507AC0000000039), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Unfair Competition Prevention Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4920/tb), retrieved 2026-10-11
- This site's parser, version 189 — 不正競争防止法 — structure, counts, cross-references and defined terms, computed 2026-10-11
