Zuo Jian thought about it, since Wang Shan revealed this meaning, then think about it from another angle, this proves that he obviously can't wait.

"Hey, what the hell do you mean?" Fang Yunyun thought about it for a long time, but she didn't come up with it, so she had to ask Zuo Jian.

"It's not interesting."

Zuo Jian said ominously, in order to prevent Fang Yunyun from continuing to ask, he pointed to the teaching building of the third high school outside, and said: "I asked the security guards here last time, every time the person who comes to deliver the courier is the staff of the courier company, and he knows almost everyone." In this way, I think it is possible to remove the suspicion that the mastermind behind the scenes is the personnel of the courier company. ”

Sure enough, hearing his words, Fang Yunyun's attention was temporarily attracted to the past.

She frowned and said, "Just because of this, do you think that the mastermind behind the scenes cannot be the staff of the courier company?" ”

"That's right." Zuo Jian nodded, spewing out a puff of smoke, Fang Yunyun suddenly wanted to laugh at Zuo Jian's appearance, like the legendary Sherlock Holmes with a pipe in his mouth.

"Any courier company, before receiving the mail, will check what the sender mailed, at the beginning, I saw the courier mail with bullets encapsulated, I also once thought, can load bullets into the mail, without being checked out by the courier company personnel, the most likely, naturally the company inside, that is, the staff of the courier company."

"Because they have such an convenience, I suspect that it is the staff of the courier company. But later, I gave up this speculation, and after I asked the security guard, I learned that basically, the staff of the courier company, when receiving any courier, will register on the computer, that is, any courier, will leave evidence of the handling staff on the computer. ”

"So, we just need to follow the vine to know who the courier who collects the mail is. But doesn't this leave a clear piece of evidence? If the mastermind behind the scenes is really a staff member of the courier company, of course he can deny it, but at the same time, he will also know that if he does this, it will definitely arouse the vigilance of the police car! ”

"At least, for a considerable period of time, he will become a suspect in the eyes of the police, such a thing is a great danger for any intelligence officer, if it were you, would you be willing to leave such a dangerous hidden danger?"

Zuo Jian looked at Fang Yunyun seriously.

After thinking about his words carefully, Fang Yunyun shook her head and said, "If it were me, of course I wouldn't do this." ”

"Bingo!" Zuo Jian snapped his fingers, "So, the possibility that the mastermind behind the scenes is the staff of the courier company is very small!" ”

"I remember when you said that the mastermind behind the scenes is in Zhongzhou City, and it is very likely that he is in the third high school." Fang Yunyun looked at him and said, "Then you still think so now?" ”

"Yes, that's right!"

Zuo Jian nodded, looked at the teaching building in the distance with a solemn face, and said: "These days, I always have a feeling that I am occasionally peeped at from a distance......

"Don't tell me that someone is in the school building, peeping at you with a telescope." Fang Yunyun interrupted him.

"yes, that's what I thought!" Zuo Jian rolled his eyes.

"Cut, if you really say you're fat, you'll gasp." Fang Yunyun snorted, "Any judgment must have evidence that is true and reliable and can withstand scrutiny, and your evidence is your so-called hunch?" ”

"I'll ask you a question first." Zuo Jian's gaze was retracted from a distance, he looked at Fang Yunyun, and said seriously: "Who do you think is the person who inquires about military secrets?" ”

"Uh...... It should be those people with ulterior motives and compassion, right? Fang Yunyun said tentatively.

"Hehe, it's actually very simple." The corners of Zuo Jian's mouth curled up, and he smiled slightly, "It's a foreigner!" In the final analysis, only foreigners will try their best to know about these things. ”

"Well, you have a point." Fang Yunyun had to admit that Zuo Jian's words were very correct. Even if they are from Huaxia Kingdom, they try every possible means to get some military secrets, and in the end they still have to sell these secrets to foreigners.

"Just admit it." Zuo Jian said with a smile: "Then let me ask you again, if a foreigner stays in Huaxia Country for a long time under a legitimate pretext, and it is not easy to arouse the suspicion of others, then what excuse should he use?" ”

This question is a bit difficult, Fang Yunyun's willow eyebrows furrowed, and she pondered deeply.

"I'll give you a hint." Zuo Jian smiled and pointed to the teaching building of the No. 3 High School and said, "Look here. ”

"School?" Fang Yunyun's heart moved, and she blurted out, "International student!" In the name of studying, staying in China for a long time will naturally not attract the attention of the Huaxia police! ”

"That's right!" Zuo Jian said with a smile: "The son can be taught!" ”

"Humph!" Fang Yunyun gave him a blank look, this guy was clearly praised, "You mean, the mastermind behind the scenes is very likely to be an international student from the Third High School?" ”

"Alas!" Zuo Jian shook his head and said unceremoniously: "You really can't use your brain at all...... Isn't it possible that there are no foreign teachers other than international students? ”

"Both are of the same nature!" Fang Yunyun's face flushed slightly, and she said stiffly: "Anyway, it's all right in school!" ”

Seeing her like this, Zuo Jian laughed, "In addition, there is one more thing that can prove my speculation, it is still that email." After ruling out the suspicion of the courier company's personnel, the person who is most likely and has the most opportunity to put the courier in the delivery room is the teacher or student of this school. ”

"Because only they can enter the communication room and pick up the mail freely. Think about it, if someone enters the delivery room, they put the parcel that has been prepared there and wait for the students to pick it up. Isn't that reasonable? Moreover, this can also ensure that the express mail encapsulated with bullets can be safe and sound, and there will be no mistakes, so that Meng Xian will just receive it. ”

“…… What you say does have some truth. ”

After listening to his analysis, Fang Yunyun nodded involuntarily, indeed, Zuo Jian's inference is very able to withstand scrutiny.

"Then you've analyzed it in place, why don't you look for it in the school?" Fang Yunyun asked: "Does the third high school have foreign teachers?" ”

"There is one. It's called Jack. Zuo Jian nodded, his expression becoming serious, "I've seen this person...... How to say it. This person gave me the feeling that he had definitely undergone some kind of training, but I asked Su Shishi and asked her to check Jack's information privately, he is a native of the United States and has served in the United States Army. ”

"What do you mean? This Jack is the most suspicious? Fang Yunyun heard the meaning of his words, didn't think about it, and said directly: "Since there is a suspicion, then what are you waiting for?" I have summoned him to the police station in the manner of inquiry. ”

"I knew you would think so!"

Zuo Jian pursed his lips and said: "You must know that Jack is a native of the United States, not a native of China, if you use such a method without evidence, it will cause diplomatic disputes, and if it is serious, it may even cause public opinion in the world." You must know that in international public opinion, the United States has always liked to attack Huaxia. ”

"And if it's really him, if one is not handled well, let him be alerted, and then, if we want to find evidence, it will be even more difficult. Because he will act immediately and wash all the places where he is suspicious. ”

“…… It's that I'm thinking a little less. After listening to his words, Fang Yunyun surprisingly did not refute this time, but agreed very much.

After pondering for a while, Fang Yunyun proposed: "Then let's monitor Jack from now on, twenty-four hours a day." Fight to find evidence of him. ”

"Hehe, if he doesn't leave school for a month in a row, what will you do?" Zuo Jian shook his head.

"Then continue to monitor, I don't believe he can leave school for a year!" Fang Yunyun said as it should be.

I can't wait that long. Zuo Jian secretly thought in his heart, if it wasn't for Jack, then in a few days, the wild wolf would return to the army, who should protect Father Meng's side?

Others, Zuo Jian can't be trusted, you must know that any slightest negligence will cause irreparable regrets.

Of course, these thoughts in Zuo Jian's heart would not be told to Fang Yunyun. He smiled and said: "In case, I mean in case, after half a year, we find out that Jack is not a suspect, in that case, wouldn't it be in vain to do half a year of useless work, and the real behind-the-scenes mastermind, within half a year, has long been unknown where to run." ”

"This doesn't work, that doesn't work, then you have to say a way!" Fang Yunyun said dissatisfiedly.

"I have a solution."

Zuo Jian thought for a while and said, "But this method requires the help and assistance of your police." ”

"Oh? You say come and hear it. Fang Yunyun was a little interested.

"It's very simple, my solution is that instead of looking for evidence, it is better to take the initiative to expose him." Zuo Jian said with a smile: "I declare in advance that I am not very sure of this method, so whether to adopt it or not, it is up to you to decide." ”

"You talk about it first, and I'll see what kind of way to get him to take the initiative to expose it." Fang Yunyun said.

Zuo Jian thought for a moment and said: "Suppose, Jack is really the one behind the scenes, when he sees that he has been exposed, do you think he will resist?" ”