According to the on-site investigation conducted by Wannian County, only the footprints of two people were extracted from the house where the princess was killed.

One is the princess's own.

The other is Su Dawei.

Rao is Su Dawei had expected that this case would be inseparable from him, but when he saw this "evidence", he couldn't help but scold in his heart: Thief, your mother.

He finally knew why when he first came in, Pei Lian, the secretary of Dali Temple, and the lords and long historians in the public hall looked at his strange gaze.

This case, judging by the evidence at hand.

He Su Dawei is the first suspect.

Li Zhi ordered him to assist Dali Temple in handling the case, and he had the taste of the last time.

is to order Su Dawei to "prove his innocence", "I will check myself." ”

In terms of benefits, this is Li Zhi's trust in Su Dawei.

But if you read it from the other side, it is also a test.

If you can, you will cross the moat.

If you can't, you will be killed.

If it weren't for the public office of Dali Siqing, Su Dawei would not have hated to slap himself on the forehead.

Why can't I think about it that day, if I want to pick up Princess Gaoyang, why do I send the "Legend of the Western Regions of the Tang Dynasty" entrusted by Master Xuanzang to Princess Gaoyang.

Wait a minute......

Su Dawei suddenly remembered this and couldn't help but ask: "In the house where the princess was killed, did you find Master Xuanzang's "Records of the Western Regions of the Tang Dynasty"?" ”

"What?"

Pei Lian had been secretly observing Su Dawei's expression, and couldn't help but be stunned when he heard the words.

After thinking about it, he said: "There is no mention in the dossier, presumably this thing was not found at the scene." ”

Su Dawei, who had already made a judgment in his heart, frowned.

In this case, it is not only necessary to clear one's own suspicion.

It is necessary to find out the real culprit who killed Gao Yang.

I also have to find Master Xuanzang's "Tang Western Regions".

It's really weird.

That murderer, did he kill someone and take the book away?

"The Legend of the Western Regions of the Tang Dynasty" is neither Buddhism nor a treasure book, but Master Xuanzang traveled west to seek Buddhism, passing through more than 100 countries in the Western Regions along the way, and all kinds of things he saw and heard.

What kind of person would take this book after killing the princess?

Does this book make sense to the murderer?

"Su Shaoqing."

Pei Lian observed Su Dawei's expression and reaction on the side, and said thoughtfully: "The scene of the case, do you still want to go and see it?" ”

"I'm going."

"Well, then I will arrange for the servants and errands of Dali Temple to accompany you, if necessary, you can also summon the Wuhou and arrest of Chang'an and Wannian County, and the errand and servants, as long as the investigation is needed, Dali Temple will fully support it."

"Thank you."

Su Dawei hugged Pei Lian with a fist.

No matter what the other party thinks in their hearts, at least this attitude releases goodwill.

"Su Shaoqing doesn't need to be polite, you and I are grasshoppers on a fly in this case, solve the case as soon as possible, it will be beneficial to you and me."

Pei Lian looked at Su Dawei's face, and then said: "Su Shaoqing, don't worry, I absolutely believe that this case has nothing to do with you, with Su Shaoqing's means and resourcefulness, it is really involved, and it will never leave obvious traces."

Besides, there were only footprints of you and the princess at the scene of the princess's murder, which in itself is paradoxical. ”

Pei Lian, as a Dali Siqing, has no bad vision and means.

He can be called a capable official.

For example, the description of the scene in the dossier.

There were only two people's footprints.

In the princess's mansion, at least there must be traces of the descendants, and besides, the princess needs someone to send it in for dinner.

There were only two footprints on the scene, which in itself was impossible.

Something is wrong.

"Pei Siqing, the case is urgent, I won't stay longer, let's go to the scene to take a look, here you can seconded a few errand servants to walk with me."

Borrowing someone does not mean that Su Da cannot survey the scene for himself.

There are many capable people in his hands.

Just to avoid suspicion.

This case is very important, and Su Dawei must not use only his own subordinates like in the past cases.

And to borrow more from Dali Temple and the county's criminal name.

to show openness and innocence.

"Siqing, I'll go to the scene with Su Shaoqing to have a look."

Bo Cheng Daozhi, the master of Dali Temple, stood up from his desk and saluted Su Dawei and Pei Lian.

……

As early as the Qin Dynasty, there were specialized forensic doctors in China to investigate cases.

At that time, it was called "Reishi".

In later generations, in the Qin tomb of Sleeping Tiger in Yunmeng County, Hubei Province, a batch of bamboo slips of the Qin State were unearthed, including 98 bamboo slips of the "Sealed Diagnosis Style".

These bamboo slips are the judicial documents of the Qin State, and the content involves many aspects such as case trial and investigation, inquest, and seizure.

The part on the verdict of the case can be regarded as the earliest forensic book.

The three words "sealed diagnosis" refer to different judicial acts and enforcement requirements, "sealed" means sealed, "diagnosis" is investigation and inspection, and "style" is judicial norms; The post-mortem is part of the "diagnosis".

These judicial reports were called "Letters of War" in the Qin Dynasty. In the book, there is China's oldest "autopsy report" "Death of a Thief".

The content of "Death of a Thief" is that after receiving a death report in the jurisdiction, the supervisor immediately "ordered Ling Shi to go to the clinic".

This book was completed by Ling Shi, who was equivalent to a forensic doctor in later generations.

As recorded in "The Death of a Thief": A man's body was in the south of a certain house, lying on his back.

The man had a stab wound on the left forehead and two stab wounds on his back, both longitudinal, 4 inches long and 1 inch wide, with a concave wound in the middle, like the marks of an axe.

Bleeding from the periphery, contaminating the head, back, and ground.

There were no injuries to the rest of the area.

He wore a single cloth shirt and a skirt, the back of which was equivalent to the wound area, and two places were cut by the blade, and the back and placket were stained with blood.

There was a pair of Qin-style hemp shoes on the west side of the corpse, one was slightly more than 6 steps away from the corpse, and the other was 10 steps away from the corpse.

The ground was hard and there were no signs of the killer.

The deceased was a man of prime living with white skin, 7 feet 1 inch in length and 2 feet in hair.

There are two old scars on the abdomen for moxibustion......

The level and norms of forensic medicine in the Qin period were no less than those of later generations.

By the time of the Tang Dynasty, forensic medicine was called "Zhu Zuo", and the procedures and methods for judging cases had improved on the basis of the Qin people.

When Su Dawei and Cheng Daozhi rushed to the princess's mansion with the servants and servants of Dali Temple, they found that the door of the house had been sealed.

There are Jin Wuwei and the military guards of Wannian County in front of the door and by the courtyard wall.

Su Dawei and the others went up, greeted each other, and took out the warrant issued by Dali Temple, so they had to open the seal and push open the door to enter.

"Two hours ago, there were already thousands of people who had already done a live inspection, and this case was normal and normal, and it was strange to say that it was strange."

Cheng Daozhi came here before, and when he was by Su Dawei's side, he had the meaning of explaining the case for him.

"Where is normal, where is the strange and strange?"

From the moment Su Dawei entered the door, he slowed down and carefully searched the ground with his eyes.

The geese have left a voice, and the people have left traces.

Even the most clever assassin would not be able to fly through the air in such a large mansion, and he would always leave footprints.

Even if it is weird and strange, Su Dawei has never seen one who can fly in the sky all the time without falling.

Therefore, the first step in investigating the scene of the murder is to start from the ground search.

"It's normal because this case doesn't seem to be much different from ordinary murders, and if you ignore the identity of Princess Gaoyang, it's like an ordinary murder."

Cheng Daozhi is forty years old this year, his face is white, he speaks slowly and logically, and he accompanies Su Dawei to move forward slowly, his mouth seems to be careful about the words, and the speed of speech is extremely slow.

Su Dawei sensitively captured a word: "It's like?" That means it's not, what's the odd about? ”

"Judging from the traces at the scene, the princess did not struggle, and the preliminary judgment is that the murderer princess must have known, but except for the footprints of the princess and Shaoqing, there is no trace of a third person at the scene."

"Wait, I have a problem."

Su Dawei couldn't help but interrupt: "When I went out of the princess's mansion, it was still early, and for such a long time, was there no one else in the mansion?" What about the princess's maids? And the princess's dinner must be made by someone and delivered, right? ”

"Qi, that's where Qi is."

Cheng Daozhi's face was a little strange.

The noon sun cast on his face, a golden yellow, and there was a faint hint of something in his eyes.

But for a while, I couldn't see clearly.

"If you find anything, please hurry up and say that this case is very important."

Su Dawei glanced at Cheng Dao, and couldn't help but think in his heart, whose surname is Cheng, which family is he from?

He is in Dali Temple, what kind of roots does he belong to, this person should not have a problem.

I heard Cheng Daozhi continue: "The cook lady and the maid who cook are all dead. ”

Su Dawei's footsteps slammed down.

"Dead?"

He repeated, again in disbelief.

If the murderer killed the princess on purpose, why is it necessary to kill even the people in the house?

Isn't it possible that the more people you kill, the greater the exposure?

Unless there is a deep hatred, there is no such thing.

But Princess Gaoyang was assigned to Bazhou, it has been eleven years, and who will have such hatred in Chang'an.

"How did the people in the house die?"

"Poisoning."

Cheng Daozhi didn't reply, and followed the servant on the side, and said.

He was at the scene when the murder was investigated before.

"Poisoned?"

Su Dawei chewed these two words.

I finally felt that something was wrong in my heart.

The murderer killed Princess Gaoyang, and then killed the people in the house, which gave people the feeling of venting their anger out of hatred.

But with poison, it cannot be said that passion kills.

The use of poison means that the murderer was prepared and premeditated in advance.

It didn't come empty-handed.

"There is also a strange thing, we have investigated the scene and found that the princess's inner house, the people in the house have not been there, the footprints are only to the door, and then the people themselves eat in the side hall, and the people in the kitchen eat in the kitchen, but these people are poisoned and died at the same time."

"The princess didn't send dinner, maybe it was the princess's own request, as for these people dying at the same time, the poison should be in the meal, so that it can be poisoned at different places at the same time."

Su Dawei said slowly: "At least during the time when the cook was cooking, the murderer had already sneaked in. ”

Glancing at Cheng Daozhi and Cheng Zuo, Su Dawei then asked, "What kind of poison is it, do you know?" ”

An embarrassed look flashed on his face: "I didn't find out." ”

Su Dawei's footsteps stagnated slightly, and he continued to walk forward: "Got it." ”

It's not surprising that no poison was found.

After all, there is no technology tree for chemistry in this era.

With the primitive method of drug detection in ancient times, it can also be used to find out whether it is poisoned.

As for what kind of poison it is, except for arsenic, crane top red and pull, which are more obvious in death, there are too many poisons to judge.