Criminal investigation is hard work, because all you have in front of you is the result, but you need to deduce the cause. But most of the time, you're going in the wrong direction.

The clues that Lin Xiuyi accidentally got at the scene couldn't go on, and now he had to go back to zero and return to the original point again to find new clues. However, Lin Xiuyi didn't feel clueless, because this Kuroda Shoji was too ostentatious, from the time he chose to escape from prison, to the time he set up an ambush to kill the police, everything had to be done vigorously. However, it also left a lot of clues.

The bombing case is not going through for the time being, so let's first investigate the escape and see how Shoji Kuroda's accomplices kidnapped him from the custody of the Tokyo detention center.

Early the next morning, Shuichi Hayashi and Miki went to the Tokyo Detention Center to investigate the escape of Shoji Kuroda. The Tokyo Detention Center is an important prison under the Ministry of Justice, and its predecessor was Sugamo Prison. Until the end of World War II, Sugamo Prison was mainly staffed by anti-war activists of the time. After the war, the Allies took over Sugamo Prison, which was transferred to the International Military Tribunal for the Far East, where the notorious Hideki Tojo and others were imprisoned and eventually hanged. In 1958, after the Allies ended their requisition of Sugamo Prison, Sugamo Prison was renamed the Tokyo Detention Center. After 1971, war criminals were no longer housed in prisons, and the Tokyo Detention Center was moved to Kosuge, Katsushika Ward, where it now houses the largest number of death row inmates in the Kanto region, including the cult that caused the Tokyo subway bombing 20 years ago, and the prisoners of the Last Trial.

Because Shoji Kuroda was kidnapped by his accomplices on the way to the hospital, Lin Shuichi naturally asked the criminal officer who was in charge of guarding Shoji Kuroda at the time of the incident. Let's take a closer look at what happened.

According to information provided by the Tokyo Detention Center, Kuroda was taken to Tokyo Central Hospital because he had stabbed himself in the abdomen with a sharp toothbrush handle. From the current point of view, this is completely the fuse of the whole prison escape incident.

Wounded in the abdomen, Shoji Kuroda was rushed to the Tokyo Central Hospital, where two criminal officers were dispatched by the Tokyo Detention Center to accompany the car. When the ambulance drove near the Arakawa Bridge on the Mukaishima Line, a van and a minibus hijacked the ambulance and killed one of the officers who were in the same car on the spot. Because the people who kidnapped Shoji Kuroda were covered with their faces, and the hijacking operation only took a few minutes, the witnesses who were present at the time did not provide any valuable clues to the police.

Being able to leave the scene of the incident with the injured Shoji Kuroda before the police arrived proved that the other party was a group of well-trained armed men. They dared to take the seriously injured Shoji Kuroda away, and soon after, Shoji Kuroda invaded the police communication system in a fit of rage. This shows that the other party is confident that he can handle Kuroda's injuries with his own ability, and there must be members of Kuroda's accomplices who know surgical techniques and are enough to deal with Kuroda's situation.

The purpose of Hayashi Shuichi and Miki's visit to the Tokyo Detention Center was to learn about the situation at that time from the surviving criminal officer Hidenori Iwaki. In the wake of the prison escape, the Iwaki Detective has been suspended from his duties. However, the Ministry of Justice asked the Metropolitan Police Department not to meet with the person involved in the escape without being accompanied by an official from the Ministry of Justice, so Hayashi Shuichi and Miki had to go to the Tokyo detention center.

"Iwaki-san, my colleague and I would like to ask you a few questions about Shoji Kuroda, who first discovered Kuroda self-harming with the handle of his toothbrush?" In the reception room of the Tokyo detention center, Shuichi Hayashi and Miki finally met with the criminal officer Iwaki, the person in question. The questioning was conducted by Shuichi Hayashi, and Miki was in charge of the record, and of course there were also officials from the detention center and an entourage from the Ministry of Justice.

"The first witness, Officer Date, who had already died in the line of duty, was checking on the prisoners on the roof of the death row, but when we went to Shoji Kuroda's room, we saw Kuroda lying on his side on the ground, his body trembling, because he sensed that something was wrong, so we went down to check on the situation one at a time......," Iwaki replied with a little nervousness.

"Roof?" Lin Xiuyi asked curiously.

"Ah, that death row is different from other cells, where the prisoners are kept in solitary confinement. Ordinary labor and rest are carried out in the cell. There are only 30 minutes of wind every day, and there is basically no chance of contact with other people. In addition, in order to facilitate management, the roof of each cell is tempered glass, and we can see what the prisoners are doing in the cell from the roof......" Iwaki criminal officer explained to Lin Shuichi in detail.

"And what did you do after that?" Lin Xiuyi continued to ask.

"Date and I rushed into Kuroda's cell and found him sweating profusely, and when we quickly lifted him up, we found him with a toothbrush stuck in his abdomen. So we quickly contacted the hospital and sent an ambulance. And informed the superiors of the situation...... When the ambulance arrived, because we found out that Kuroda had harmed himself, and we didn't have time to communicate with other colleagues because of the urgency of time, we followed Kuroda to the Central Hospital together......" After the Iwaki criminal officer answered, he glanced at Lin Xiuyi a little nervously, and Lin Xiuyi smiled at him.

"Later, when you were attacked, can you tell us about the situation?"

"Our car had just driven onto the Arakawa Bridge, and suddenly there was a sudden braking, and then the car hit the guardrail next to the bridge! When we tried to get out of the car to check on the situation, we were suddenly surrounded by a group of masked guys, who blindfolded me with a black cloth and helped my hands and feet with a strap. Then I heard a gunshot, and I don't know what happened after that......"

After the questioning was over, Lin Xiuyi asked the Iwaki criminal officer to check his record as usual, because this record was likely to be used as evidence in the future, so it must be signed by the party. The Iwaki criminal officer took the notebook handed over by Miki with both hands and skimmed through it slightly. Then he took out the pen from his right jacket pocket and carefully signed his name at the end of the transcript with his right hand.

"Ahh What a special pen, is it custom-made by the Tokyo Detention Institute, can you give me one?" Lin Xiuyi suddenly asked Iwaki.

Pan Cheng smiled and casually handed the pen in his hand to Lin Xiuyi.