Listening to Heifu's words, it seemed that he had a plan, and Li Xian raised his eyebrows: "It seems that the pavilion chief has made a decision, and Xian is willing to hear about it!" ”

Seeing his dissatisfaction, Heifu said: "If you go all over the mountains and fields and blindly look for it, it will be like looking for a needle in a haystack, and it is impossible to find it." ”

"But if you define the scope of the contributor and when the crime will be committed, won't it be easier to find?"

Heifu did not spend three years in the police academy in his previous life, and he still learned some criminal investigation methods, and the matter in front of him cannot be blindly guessed, but must be defined by using the "seven hes" in criminal investigation.

The so-called seven He is seven questions: when, where, by whom, for what purpose, for what tools, for what purpose, and what consequences have been caused? It is referred to as the "Seven Elements" of criminal cases.

So first of all, he had to determine the time and place of the crime.

Heifu stood up, came to Ji Ying's side, patted him on the shoulder and said, "Ji Ying, you said you went three miles today?" Which ones are they? ”

Ji Ying snapped his fingers and said, "I first went to Xiaoqingli in the east, then to Pinghu in the west, and finally to Chaoyangli in the south......"

"After you finish delivering the official document sent to Pinghu from the township, how many letters are left in the back basket?"

Ji Ying thought for a while: "One is a document written by Tian Zuo from the township to Tian Dian in Chaoyang. ”

"When was the last time you opened the basket?"

"It's when I took this official letter and handed it to the sunrise Satorito Nori......"

"I didn't believe it in the basket at that time, did you?"

Ji Ying shook his head and said, "It's gone." ”

"Haven't opened the basket since?"

"No more, until I returned to the pavilion......"

The more Ji Ying said, the more certain Heifu was in his heart, and he said: "Now it is clear that this anonymous letter was quietly thrown in by Ji Ying during the period when Ji Ying was in Chaoyangli Tiandian, after delivering the last official letter, until he returned to the pavilion. ”

Everyone nodded, it could only be so.

Heifu began to interrogate Ji Yinglai again: "How long did you stay in the morning sun after you finished submitting the official document?" Where did you go? Who have you talked to, where did you rest after leaving Chaoyang, and when did you put your backpack aside in the middle of the way? Who did you meet on the way? Is there any contact? ”

Ji Ying replied one by one, after finishing official business, he had someone he knew in Chaoyang, went to his house to sit, drank water, and chatted for a while. During the period, the neighbor of the family gave birth to a fat boy, Ji Ying followed the past to join in the fun, the neighbor's family congratulated a lot of people, people came and went at that time, the scene was very chaotic, Ji Ying suddenly had abdominal pain, and put down the back basket to go to the toilet......

After that, he stood and talked a few words at the prison gate in Chaoyangli, and several hunters came back from inside and out, and stopped to greet him......

What made Heifu breathe a sigh of relief was that Ji Ying repeatedly confirmed that after he left Chaoyangli, he did not stop to rest, and never left his back basket, although he met people on the way, he didn't talk, just passed by in a hurry...

"Unless someone is able to put the letter into a covered basket a few steps away in the middle of the road, when Ji Ying walks briskly."

"Otherwise, there is only one conclusion!"

Heifu said firmly: "The person who submitted the book can only be the hands and feet in the morning sun!" ”

"That's right!" Ji Ying slapped his palm: "When I was in the rising sun, I did feel that there was movement behind me, but I didn't care at the time, maybe it was at that time that someone voted for an anonymous letter!" ”

In this way, the time and place of the crime of the author were basically determined, and Heifu looked at several other people and asked, "Second and third sons, do you still have objections?" ”

"The pavilion chief is really amazing!"

Dongmen Leopard, Yuliang, and Xiaotao's eyes were full of admiration, and Puzhang also praised him.

Even Lixian, who had just asked the question, had to be convinced: "The pavilion chief is thoughtful, and in his words, it is like the county magistrate deciding a case......"

Dongmen Leopard immediately laughed and said: "Heifu is the person who answers all twenty questions in the law!" Even being an official is enough! "He heard about this when he went back to the county seat to rest, and the others don't live in the county seat, so he doesn't know yet.

"Twenty questions are all right...... I don't want the pavilion chief to be so good. At this moment, Liham was stunned, and he also stood in awe of Heifu.

"It's all luck, luck."

Heifu smiled modestly, to say how many case-solving skills he has as a police academy graduate, it is bragging, but he has seen a lot of case files, and he has also exercised his thinking logic.

Alas, the people's police have no chance to do it, so they can only live in this ancient police station.

It just so happened that this anonymous letter came at the right time, and it was his chance to show his skills. If he can succeed, he will not only be rewarded, accumulate his "achievements" as the pavilion chief, and pave the way for future promotions, but also convince everyone in the pavilion to obey him......

Of course, there is another reason that is difficult to speak.

For someone with obsessive-compulsive disorder like him, it is intolerable to receive a letter but not be able to open it...... In any case, we must arrest the person who submitted the letter, and then open the letter in front of him to see what it is.

Thinking like this, Heifu restrained his smile and said solemnly:

"The time and place of the crime have been determined, and the person who submitted the book is likely to be a native of Chaoyangli, and he is still in the middle at this time! Tomorrow morning, I will take my second and third sons to take a walk in the rising sun, take a look, and let the person who submitted the book reveal his original form! ”

……

Early the next morning, Heifu divided the people in the pavilion into three: begging the thief Dongmen Leopard and the pavilion pawn Yuliang to escort the Shiwumao, who had been locked up in the pavilion all night, to the township; Xiao Tao and the pavilion's father, Pu Zhang, stayed in the pavilion; He himself went out with Ji Ying and Lixian and walked to the south in the rising sun......

As the saying goes: the snow is not cold and the snow is cold, today is actually a sunny day, and most of the snowfall that spread over Anlu County yesterday has melted, making the surroundings extremely cold. As soon as he went out, Heifu took a breath of cool air into his lungs, the weather was cold and wet, and Ji Ying shivered from the cold......

"As soon as the snow melts, the road to Chaoyangli is even more difficult, you have to bypass a hill from Tu Road, and then walk a few miles along the path, you must have a foot in mud......"

According to Ji Ying, by the time they walked into the rising sun, it was estimated that it would be almost noon.

So the three of them quickened their pace, and after walking for half an hour, they finally came out of the avenue, and they sat down on a big rock at the fork in the road to rest for a while, and eat something by the way. The Qin State did not allow civil servants to go to the houses of the people in the house to eat, and kill chickens and ducks, and the older officials could eat public food in the pavilion on a business trip, and they could only bring their own dry food.

"Let's eat some dried fish and rice cakes." When Heifu came, he brought some special products from the sunset, and when he was sacrificing, he taught the neighbors how to make rice cakes, and many people had rice cakes at home and gave them a lot.

Lixian took the food and thanked him in his mouth, while Ji Ying chewed unceremoniously and muttered, "Brother Heifu, there is still one thing I don't understand." ”

Heifu bowed: "You say." ”

Ji Ying said: "Although you are sure that most of the people who submitted the book are from Chaoyang, but Chaoyang is a big village, with seventy families and nearly four hundred people. There are no less than twenty or thirty people who have been in contact with me yesterday and have the opportunity to submit books. ”

Heifu didn't answer first, looked at Liham, and said, "What does Liham think?" How do I narrow my search? ”

Leham looked at Hefu's appearance, and knew that he was deliberately testing himself, so he swallowed the food and said: "I took a good look at the letter yesterday, and the wooden slip used is short, and the edges are not very neat, and the length of the two standard slips used by the government to write official documents are different, and I should have made it myself." In addition, I can write letters and letters, which is not something that ordinary soldiers can do......"

He thought for a moment and added, "By the way, I smelled it, and the material of the wooden slab should be pineapple wood." ”

"Yes!"

Heifu clapped his hands and said: "Being able to cut wood, being able to write letters, and knowing how to seal letters is no longer an ordinary Qiantou." Even if he is not a small official, he must be a literate and able to read and write...... In this way, we will have far fewer people to look for. ”

Although the Qin State took the law as its teaching and the officials as its teachers, it was considered to have a higher literacy rate among the seven countries, but it was only the tallest among the shorts.

For example, in the sunset where Heifu's family was, there were more than 50 households, 300 people, and only 20 or 30 people were literate, mainly the officials, and the children of the seven or eight families with knights. With a knighthood, you have a certain amount of land and financial resources, and there are people to help with the work, so that the children can take some time to learn literacy and know the law.

The literacy rate of 10% in the sunset is already very high in the countryside, and this is because there is a retired old man Lu Ying, who has taught many people. The same is true in the plaque next door, where Yan Chen's family has taught many villagers to read and write.

In the other ones, the literacy rate can reach 5%, which is very good.

In this way, the number of people they need to investigate has been reduced to single digits, and the submitter should also know that this kind of thing is illegal, but he is still lucky, and when he does something, he must not let others see it, so it should be delivered by himself.

Heifu could even guess where the man committed the crime: it must have been when Ji Ying was not very guarded and there was no one around......

You must know that criminal investigation is a process of tracing back to the event in advance, discovering the cause from the result, and discovering the suspect from the incident. The mode of reasoning is retrospective, and its method is to verify and eliminate hypotheses that are constantly approaching the truth.

The only thing left by the author was a wooden slip, and the layman might have been confused and unable to start, but Heifu could deduce many facts from it.

But this is not enough, the difficulty of criminal investigation lies in how to discover the internal connection of things from under the complicated appearance, and how to separate the false and false clues from the false and the true.

So on the next road, Heifu began to ask Ji Ying in detail who were the people who came into contact with him in the morning sun yesterday, when and where.

Ji Ying is also a god man, he is originally from this township, and he likes to make friends on weekdays, so he knows a lot of people. After becoming a postman, I frequently ran between the various miles, and I met more people. Most of the people I came into contact with yesterday can be called famous, and even if they can't remember being famous, they can recall whose relatives and family members they are.

"That's great!" Hefu was pleasantly surprised, and if he could determine the names of those people, his plan would be implemented.

"When the meeting arrives in Chaoyang, we will pretend that nothing happens, but the new pavilion chief will take office and come for a routine inspection."

He instructed the two of them: "Let's go and ask the prison gate first, there were other people here yesterday." Visit Lizheng again to find out how many people in Lizhong are literate and can read and write! ”

"What if this is the work of the officials?" Leham asked suddenly.

"Then when we ask, he will show his feet, and then you will act like this......"

When Ji Ying heard Heifu's plan, he clapped his hands and praised it, and Lixian was also amazed and felt that it was feasible.

As they spoke, the path came to an end, cut off by a low wall, and a quiet gathering appeared before them in the midst of the dense mountain forest, billowing with smoke......

In the morning sun, it's here!