Valentina Palcovicova | Asia Human Rights Researcher

Speeding Police Car in Tokyo at Night by Digital Phase uploaded on March 4th, 2025 via pexels
Organisations have called for systemic reforms, citing violations of due process and fair trial rights in Japan. The recent acquittal of Iwao Hakamada, a former professional boxer who spent nearly 46 years on death row, has reignited debates over these controversial judicial practices.
Japan’s criminal justice system has been subject to criticism and controversy. Human Rights Watch has called for systemic reforms, as they state there have been violations of due process and fair trial rights. Moreover, criticism has been raised regarding what is known as ‘hostage justice’ practices, which refer to prolonged detentions and coercive interrogation tactics. The recent acquittal of Iwao Hakamada, a former professional boxer who spent nearly 46 years on death row, has raised debates over these controversial judicial practices.
Iwao Hakamada allegedly murdered a family of four and was convicted in 1968. This conviction was on the basis of a confession that he had allegedly made after 264 hours of interrogation over 23 days. Reports have shown that this confession was made under duress, which raises concerns about the reliability of evidence in his trial. Regardless of this, he was sentenced to death and spent 46 years on death row before being granted a retrial.
The Tokyo High Court overturned Hakamada’s conviction in March 2023, stating that evidence was fabricated and there were procedural irregularities. It was acknowledged that the evidence that was used, such as his clothes with bloodstains, was tampered with. The decision raised attention to the issues within Japan’s justice system, in particular forced confessions and prolonged detentions without adequate legal protections.
This case elucidated the broad systemic issues within Japan’s justice system. Arguments by critics show that the legal framework allows prosecutors and law enforcement officials excessive power over detainees. In Japan’s pretrial detention system, suspects can be detained for up to 23 days without formal charges, which is also in suspicious conditions that are designed to pressure them into confessing. This is because confessions play a significant role in their court proceedings as conviction rates exceed 99 percent where confessions are obtained.
Sources and Further Readings:
Amnesty International. (2024). Japan’s criminal justice system and human rights violations. Retrieved from https://www.amnesty.org/en/location/asia-and-the-pacific/east-asia/japan/report-japan/.
Human Rights Watch. (2024). Japan: End abusive “hostage justice” system. Retrieved from https://www.hrw.org/news/2024/10/01/japans-abusive-hostage-justice-system-persists
Le Monde. (2024, October 22). Forced confessions and 23-day police custody: Japan’s criminal justice system struggles to reform itself. Retrieved from https://www.lemonde.fr/en/international/article/2024/10/22/forced-confessions-and-23-day-police-custody-japan-s-criminal-justice-system-struggles-to-reform-itself_6730072_4.html.






