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Laws and Treaties

General Principle

-       Without MLAT, domestic legislation shown below, i.e. AIAI, AOCA and ADSMA, give legal basis of mutual legal assistance.

-       With MLAT, these domestic laws still provide for the domestic legal bases, while MLAT makes mutual legal assistance more efficient by, inter alia, allowing a direct communication between the Central Authorities. MLAT also can relax some of refusal causes stipulated by the laws(See guidelines.)


Obtaining Evidence

-       Act on International Assistance in Investigation and Other Related Matters (Law  No.69 of 1980): “AIAI”.

Confiscation & Asset Recovery
         for non-drug crime proceeds
Act on Punishment of Organized Crimes, Control of Crime Proceeds and Other 
              Matters (Law No 136 of 1999) :“Anti-Organized Crimes Act” (AOCA) Chapter 6
             (Articles 59-74) 

         for drug-crime proceeds

-       Act Concerning Special Provisions for the Narcotics and Psycho topics Control Act 
              etc. and Other Matters for the Prevention of Activities Encouraging Illicit Conducts and 
              Other Activities Involving Controlled Substances through International Co-operation
              (Law No. 94 of 1991) :Anti-Drug Special Measures Act (ADSMA) Chapter 6 (Articles 21


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Contact Us

International Affairs Division,

Criminal Affairs Bureau

Ministry of Justice

TEL: +81-3-3592-7049

FAX: +81-3-3592-7063  


External Links

Japanese Government

-          Ministry of Foreign Affairs

-          National Police Agency

International Bodies

-          UNODC

MLAT Partners

-          US Central Authority

-          Korea Central Authority

-          China Central Authority (Ministry of Justice)

-          China Central Authority (Ministry of Public Security)

-          HK Central Authority

-          Russia Central Authority (Ministry of Justice)

-          Russia Central Authority (General Prosecutor's Office)



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