The murderer is likely to be a woman, which means that Keiko's suspicion is even heavier. Although judging from the victim's wounds, the murderer held the knife with his left hand when he committed the crime. But it is just a simple stabbing action, even if the person whose dominant hand is right-handed, as long as he practices a little, he can still use the left-handed knife to stab the victim's body.

However, if the murderer is really Keiko, then what is Keiko's motive? What kind of purpose did she use to kill Hamada Daichi? This is what Lin Xiuyi will find out next.

But things are not so simple, just last night, Minister of Justice Nobuko Ando had a secret conversation with herself. In this conversation, Nobuko Ando revealed that the reason why Keiko and Hamada would meet at what time was because Hamada Daichi had something that Keiko needed. Judging by how concerned Minister Ando was about it, it was clear that these things were what she desperately wanted to get. So, could it be that these things have caused death to the land of Hamada?

The police did not find anything important in the place where Daichi Hamada was killed. Therefore, there is another possibility, that is, the murderer killed Hamada for these things. Reminiscent of the strange move of Congressman Hamada's sudden resignation. Lin Xiuyi had to suspect that these things might have something to do with politics.

"The police department, the forensic section has found the location where the murder weapon was sold. The Yanagi Shinobu bun was purchased at a knife shop near the Tsukiji Fish Market. More than 50 buns of the same style were sold. However, only a few knives can trace the exact route. For the rest, the store didn't leave the buyer's information!"

Miki, who went to get the information from the identification class, returned to the office like Lin Shuichi reported. And Urashima reported to Lin Xiuyi:

"The police department, the surveillance video retrieved from the cameras near the Imperial Palace Square has been summarized to Aizawa-senpai and Hanagata-sen, and they are carefully looking for other suspects who may be in the video. However, the identification of the footprints on the site is really not optimistic......"

Hearing the bad news reported by Miki and Urashima, Lin Xiuyi felt that it was still acceptable. After all, this kind of needle-in-a-haystack evidence has a lot of luck in it. If it really goes well, then you should wonder if the murderer is suspicious!

"Urashima-kun, go prepare a car, wait for ten minutes and we'll go out!"

"Hey, I'll arrange it!"

Urashima received an order from Lin Shuichi and left the office. And Miki looked at Lin Xiuyi with some curiosity, wondering where the police department was going to take everyone to in a while.

"Shouldn't we now seek a breakthrough in the confession of Miss Keiko? Could it be that you still can't bear Miss Keiko?"

Miki reminded Lin Xiuyi in a low voice. From the current point of view, Keiko is still the only suspect in this case, so everyone's main job is to find evidence that Keiko killed Hamada. If you can avoid the investigation of Keiko, it will inevitably make the high-level of the criminal department unhappy. If that happens, I'm afraid the police department will be sent to the cold again.

"I know Miki, but last night, someone I couldn't reveal my identity told me personally. Keiko went to the Imperial Palace Square to retrieve something from Hamada's hands. But when the police arrived at the scene, we didn't find anything of value. From this point of view, if Keiko kills people for these things, then we must find these things to prove Keiko's motive for committing the crime. However, there is also a possibility that before Keiko arrived at the scene, someone had already taken away this important thing by killing Hamada Daichi. If that's the case, then it's likely that this mysterious figure who arrived before Keiko is the one we're looking for another suspect. ”

Lin Xiuyi used the objective conditions that now exist to explain Miki. Hearing Lin Xiuyi mention that Hamada is likely to carry something crucial with him. Miki didn't doubt the truth of Lin Xiuyi's words, because she believed that the police department was not the kind of guy who reversed black and white in order to help his friends.

"So the police department, your decision is ......"

"Go to the headquarters of the Democratic Constitutional. I remember that before he was killed, Hamada suddenly announced that he had resigned from all his positions. He only kept his position as a member of Congress! I wondered, why would he do that?"

……

Just when Lin Xiuyi and Miki were about to discuss, Lin Xiuyi also received a call from Urashima. Urashima has a vehicle ready to travel. So, Lin Shuichi and Miki also left the office. Go to the third basement floor and meet with Urashima. Immediately afterward, the Special Search Department drove out of Sakurada Gate and headed straight for the Minshuna Headquarters building in Marunouchi.

The distance from Sakurada Gate to Marunouchi is not too far. It's a few minutes away by car. However, when Lin Xiu and his men came down to the headquarters of the Democratic Constitutional Party, they found that this place was completely different from what he expected.

"We're sorry, but we can't open Hamada's office to you! ”

"Why?"

Lin Xiuyi felt a little strange and asked rhetorically.

"Mr. Hamada is a member of the Diet, and for information security reasons, we can't show you his office. ”

The staff of the headquarters of the Democratic Constitutional, who was in charge of receiving the special search department, excused Lin Xiuyi. Lin Xiuyi is still prepared for this kind of thing. Since Hamada's office and documents are not open to the police. Lin Xiuyi thought it would be better to ask anyone who had worked beside Councilor Hamada, maybe these people knew something about Councilor Hamada.

"I don't know if it's the gentleman who is the secretary in charge of policy at Hamada. The Secretary in charge of Policy is arranged by the State. I don't think we need the approval of the Constitutionalism to go to him, right?"

Lin Xiuyi retorted unceremoniously to the other party.

"Mr. Policeman, if you are looking for a secretary in charge of policy, I am afraid you will have to pay a visit to the Diet Hall in Nagata Town. ”

The staff of the headquarters of the Democratic Constitutional Party also unceremoniously issued an expulsion order to Lin Xiu.

Just when Lin Xiuyi and the staff of the Democratic Constitutional Party headquarters who were in charge of receiving him were in tension. Suddenly, there was a knock on the door outside the reception room.

"Are you ......?"

"Ah...... You are Officer Lin Xiuyi, I am a staff member of Mr. Chengshan, and I am invited by Mr. Chengshan to invite you and your colleagues to his office, is it okay?"