Prosecutor yells, “Don’t blame the prosecution!”…The organizational structure pointed out by attorney Kosakai, “visualized by Mr.
We asked attorney Hisashi Kosakai, who has been advocating for the visualization of interrogations, about the problems with prosecutors' interrogations.
Quick Look
- The case led to a criminal trial after prosecutor Daisuke Tabuchi of the Osaka District Public Prosecutors Office's special investigation department was accused of using coercive behavior during an interrogation.
- Hisashi Kosakai, a lawyer who has been advocating for more than 30 years to make interrogations more visible, pointed out that the problem is not an individual's qualifications, but a structural problem in which inappropriate methods are reproduced within an organization.
AI-generated summary
Why It Matters
A prosecutor from the Osaka District Public Prosecutors Office's special investigation department is facing a criminal trial for allegedly using coercive language and behavior during an interrogation. Lawyer Kosakai points out that similar interrogation methods were used in past corruption cases.
A series of coercive interrogations by prosecutors have come to light, and this is an unprecedented situation in which criminal charges have even been brought against them. We asked Hisashi Kosakai (73), a lawyer from the Osaka Bar Association, who has been calling for the visualization of interrogations for more than 30 years and is also known as ``Mr. Visualization,'' to find out where the problem lies.
--At the Osaka District Court, a criminal trial has begun in which prosecutor Daisuke Tabuchi (54), a former member of the Osaka District Public Prosecutors Office's special investigation department, will be charged with a crime for yelling, "I'm sorry for the prosecution" and banging on a desk.The third trial will be held on the 24th. What do you think of this trial?
That's surprising. He conducted such an interrogation even though he knew that the interrogation was being recorded. The current visualization system may not have been sufficient. The prosecutor's mindset itself has not changed.
--what do you mean.
I have likened the Special Investigation Department to ``Ukai'' (cormorant fishing). The chief prosecutor is Usho, and his subordinate prosecutors are U. The cormorant fisherman instructs, ``Take this statement,'' and the cormorant begins the interrogation.
In this case, the cormorant fisherman was Prosecutor Mikio Hachisuka, who was the chief prosecutor leading the investigation, and the cormorant was Prosecutor Daisuke Tabuchi.
Those who used to be cormorants eventually become cormorant fishermen, passing on the methods they were taught to the next generation. Rather than individual qualities, it is the structure within the organization that reproduces problematic methods.
--I heard that you had a confrontation with Prosecutor Hachisuka, who was the chief prosecutor, in court in the past.
About 20 years ago, in a 2007 corruption case in Ikoma City, Nara Prefecture, handled by the Osaka District Public Prosecutors Office's special investigation department, the former chairman of the city council, for whom I served as a defense attorney, recorded in the suspect's notebook that he had ``threatened to have my son arrested'' and ``had his desk slammed.'' Prosecutor Hachisuka was in charge of this investigation.
In the end, the court did not recognize the illegality of these interrogations.
What to Watch
AI outlook — possibilities, not facts
The third trial of prosecutor Daisuke Tabuchi's criminal trial will be held on the 24th.
Very likely · Within days
Open Questions
- How will the court judge the prosecutor's behavior in this case?
- Will structural reforms within the prosecution organization progress?







