Lu Chengzhou's words made Nozaki fall into deep thought.

Yes, if Tanaka didn't know the murderer, he would definitely not be attacked so easily.

Judging by Tanaka's corpse, there was no sign of resistance.

"Mr. Nozaki, I want to conduct a covert investigation of everyone. On the night of the crime, people who were not in the gendarmerie detachment were suspected. Lu Chengzhou said slowly.

"You mean, the murderer is in the gendarmerie detachment?" Nozaki said in surprise.

"The one who killed Tanaka was the one who was in the military command, and the Chinese that Tanaka knew and had joined the military commandery were basically here." Lu Chengzhou said with a deep groan.

"Yes, but only in secret." Nozaki nodded.

After Lu Chengzhou left, he ran into Sakai, who was holding a piece of cloth in his hand, which seemed to be wrapped in something, and hurried towards Nozaki's office.

"Hello Captain Sakai." Lu Chengzhou stood aside and said politely.

"Is there any progress on the case?" Sakai stopped in front of Lu Chengzhou and asked.

Tanaka is a member of the extra-high class, and Tanaka was killed, and it should be up to him to investigate.

However, Nozaki gave this task to Lu Chengzhou.

Although Sakai was dissatisfied, he was helpless, after all, it seemed more appropriate for a case involving Chinese to be investigated by Chinese.

Of course, this does not mean that Sakai completely handed over the case to Lu Chengzhou.

In fact, he is also investigating the case in private.

"I guess the murderer is in the gendarmerie detachment." Lu Chengzhou whispered in Sakai's ear.

Sakai is the leader of the super high class, and Tanaka is his subordinate, so if this case is to be "solved", Sakai really needs to cooperate.

"What?" Sakai was startled, and anger burned in his eyes.

"The investigation is still ongoing, and if there is any progress, I will notify you as soon as possible." Lu Chengzhou said with a smile.

When Lu Chengzhou spoke, his eyes glanced at the thing in Sakai's hand, which was like a pen, and it could be chopsticks, but it was definitely not a gun.

"This is the murder weapon that killed Tanaka, and it is also the weapon he brought himself, so I took it for testing." Sakai saw Lu Chengzhou's gaze and said casually.

Lu Chengzhou is in charge of investigating this case, and since he has locked his suspicious eyes on the gendarmerie detachment, he doesn't need to hide it from him too much.

"Did you find anything?" Lu Chengzhou asked curiously.

"No, the murderer is very cunning, the handle of the knife has been wiped, and there is no trace left." Sakai sighed and said regretfully.

The Chinese pay attention to experience and personal judgment in handling cases, while the Japanese pay more attention to science.

If the fingerprints of the murderer can be extracted from the hilt of the knife, it will greatly help solve the case.

Disappointingly, however, no full fingerprints were extracted on it.

"This murderer is really a master of action." Lu Chengzhou said disappointedly.

He learned this knowledge when he was in Xiongzhen Tower.

When I was in the police training center, I learned that fingerprints can be used to solve crimes and lock criminals.

If it hadn't happened suddenly, Lu Chengzhou would have wanted to print the fingerprints of the pottery steps on it.

Lu Chengzhou's words made Sakai stunned, a master of action?

In the gendarmerie detachment, there don't seem to be many people who can be called masters of action.

In Sakai's mind, a person's name suddenly came out early: Tao Jie.

As the chief of operations of the former North China Region of the Military Command, Tao Jiejie can definitely be called a master of action.

"This is an important clue, I hope it will be useful to Director Lu." Sakai bowed to Lu Chengzhou and said politely.

Although his movements looked polite, the sense of superiority in his tone could not be concealed.

"If this case is solved, Sakai-kun should be the first to take credit." Lu Chengzhou said sincerely.

After Sakai arrived at Nozaki's office, he also reported to him about the dagger.

"This murderer must be an experienced operational expert." Sakai had Lu Chengzhou's reminder, and in front of Nozaki, he said very firmly.

"Operational specialists?" In his mind, Nozaki listed the people who were good at acting in the gendarmerie detachment.

These people are mainly concentrated in the third intelligence room, as well as Jin Timing in the first intelligence room.

As for Lu Chengzhou, he naturally ignored it.

And in the first place, it is naturally Tao Jie, followed by Jin Timing.

When Jin Timing was in Xiongzhen Tower, he was Lu Chengzhou's combat instructor, and his skills were very good, and with such a close attack, I am afraid that Tao Jie was not his opponent.

"This man is so hateful, if it falls into my hands, he must be skinned." Sakai's face was hideous.

"Tanaka's case, let's leave it to Lu Chengzhou. I asked you to come because I wanted you to go to the Madaifu Hospital in the French Concession. The gendarmerie relayed a message that a suspected ** person was found there. If the identity is confirmed, the level may not be low. Nozaki said slowly.

This is the information that Kawasaki Hong forwarded, Wen Congsong came back to report, Kawasaki Hong sent someone to Madaifu Hospital, wanting to know the clues of Xie Weihan's escape again.

Kawasaki Hiroshi suspects that the Madaifu Hospital is hiding the inside line of the military commander.

However, the gendarmerie found out that there was a situation at the Madaifu Hospital.

Hiroshi Kawasaki had something at hand and transferred this clue to the gendarmerie detachment.

In the affairs of the British and French concessions, it is not advisable to interfere too much in the special high class.

If all the affairs of the concession are done by the special high school, what else do you need the gendarmerie detachment to do?

"Hey." Sakai answered.

The next morning, Lu Chengzhou went to the detective unit and asked about Deng Zehua's case.

Yesterday, the people of the North China Youth Association were interrogated by the detective unit for one night, and I don't know what the situation is.

"Have you caught the murderer?" Lu Chengzhou interrogated the case as Deng Zehua's boss, and there was no problem at all.

"Do you think it's that fast?" Wen Xiufeng glared at Lu Chengzhou angrily.

"What about the people who were arrested yesterday? Is it an anti-Japanese element or a Japanese spy? Lu Chengzhou asked in a low voice.

"It's still being reviewed." Wen Xiufeng shook his head, he was also a little confused.

If Deng Zehua died at the hands of the military commanders, he should be a traitor.

The North China Youth Association is obviously an anti-Japanese organization.

When he led the team to arrest, he saw the books inside, most of which were propaganda against Japan.

How could a group of people who read anti-Japanese books be Japanese spies?

"No torture?" Lu Chengzhou said in surprise.

Those people in the North China Youth Association looked impassioned, but in fact, they had no backbone at all.

If you use the punishment a little, you will vomit if you can't keep it.

"Torture?" Wen Xiufeng looked at Lu Chengzhou like a monster.

He interrogated the people of the North China Youth Association, and he didn't look like Japanese spies, so he felt that it was better to interrogate them in a civilized manner.

Lu Chengzhou is not good at talking to Wen Xiufeng, but he can tell Liu Lifeng.

The North China Youth Association is a spy agency led by Miao Guangyuan, and Ji Minggao is a member of the gendarmerie detachment, and the other personnel are political opportunists.

Liu Lifeng warned Wen Xiufeng yesterday that the North China Youth Association might be a Japanese secret service, but he didn't expect that Wen Xiufeng would not be tortured.

Liu Lifeng once again ordered Wen Xiufeng to torture the president of the North China Youth Association first, and he was responsible for what happened.