He Jiahui stared at the footprints, looking thoughtful.

Qiu Junxuan leaned over and asked in a low voice, "Jiahui, you have been looking at this footprint, is there a problem with this footprint?" ”

"It's hard to describe, I just think this footprint is a little strange!" He Jiahui replied.

At this moment, there was a sound of footsteps in the distance, and a cadet police officer ran over out of breath and said, "Sir Li, we have found the tourists who are climbing the mountain!" ”

"That should confirm the identity of the deceased!" Li Wensheng's expression was happy: "Leave two people to protect the scene, and the others will go back with me!" ”

The crowd returned to the place where the deceased had fallen, and from afar they could hear the heart-rending wails of someone.

"Go away, let me pass, that's my dad! Father! ”

A middle-aged man was trying to get close to the body, but was stopped by the police officers.

"Sir, please mourn, but you can't go over for the time being, we have to protect the scene."

Ho remembers that the middle-aged man was also one of the mountaineering tourists. Seeing that he was crying so much, he should be a relative of the deceased.

Another middle-aged man in his forties was brought in front of Li Wensheng.

"Sir Li, this is Mr. Yu, this mountaineering activity was organized by Mr. Yu." The Cadet Police Officer opened his mouth to introduce.

"Mr. Yu, right? Don't be nervous, I'm Sergeant Li Wensheng, and I have a few questions I want to know from you. Li Sir said.

"Sir Li, you ask!" Mr. Yu nodded.

"The deceased climbed the mountain with you, you should know the deceased, right? Can you tell us about the deceased. Li Wensheng asked.

"His name is Xu Guangshan, he seems to be 65 years old this year, and he was the principal of Yingjie Middle School before he retired. We are all mountaineering enthusiasts, we often make appointments to go out to climb the mountain, and we used to have a meal together after we went down the mountain, but I didn't expect that this time Principal Xu had an accident. Mr. Yu said with a look of regret.

Li Wensheng then asked: "On the way to the mountain, we met with you, remember that you were still with the deceased at that time, and then you were separated?" ”

"Yes, we're separated." Mr. Yu continued; "The more you climb up the mountain, the more difficult the road becomes, after all, Principal Xu is old and can't keep up with his physical strength, so he gradually falls behind. He told us to go first, we didn't have to wait for him, and that's when we separated. ”

"It's not very safe to leave a sixty-five-year-old man alone in this barren mountain range!" Li Wensheng said.

Mr. Yu hurriedly explained: "Principal Xu is not alone, and Principal Xu's son-in-law, Mr. Zhang, has also stayed to accompany Principal Xu. With a son-in-law by Principal Xu's side, we thought he wouldn't have an accident. ”

"Teacher Zhang, is that the middle-aged man who is crying over there?" Li Wensheng pointed to the wailing man not far away.

"Yes, he is Principal Xu's son-in-law, his name is Zhang Dongsheng, and he also works in Yingjie Middle School, and he seems to be a math teacher." Mr. Yu replied.

"And what happened after you separated?" Li Wensheng then asked.

"We were also worried that something would happen to us, so we agreed on a time and place to meet before we separated. When the time came, we did not see Principal Xu and Teacher Zhang at the agreed place. ”

Mr. Yu paused in his voice and continued; "There is no mobile phone signal in the mountain, and we can't contact them, so we can only wait in place at the agreed place, and after waiting for about 20 minutes, we saw Mr. Zhang come back alone."

"What about Principal Xu?" Li Wensheng immediately asked.

"At that time, I didn't have time to ask, but Mr. Zhang took the lead in asking us if we had seen Principal Xu. Then Mr. Zhang told us that he had lost himself with Principal Xu. Mr. Yu spoke.

"Lost? What's going on? Li Wensheng then asked.

Teacher Zhang said that on the way to climb the mountain, he wanted to make it easier, so he asked Principal Xu to wait for him, but when Teacher Zhang was done with convenience, he turned around and found that Principal Xu was gone.

So he began to look around for Principal Xu, but he never found it, and then Teacher Zhang thought that Principal Xu might have come to the meeting place, so he also rushed over. Mr. Yu said.

"And after that? Have you been looking for Principal Xu? Li Wensheng asked again.

"Of course we have to look for him, although Principal Xu's body has always been healthy, after all, he is a sixty-five-year-old man, and we are also very worried that something will happen to him, so we started looking for him.

But as you know, it's not easy to find one in the mountains. Later, we met your cadet policeman, and we learned that Principal Xu had an accident! Mr. Yu explained slowly.

"According to that, the last person to see Principal Xu was his son-in-law, Mr. Zhang."

Li Wensheng looked at Zhang Dongsheng, who was still crying not far away, and it seemed that he had to wait for him to calm down before he could inquire about the situation.

……

Officers from the Kowloon East Crime Unit soon arrived at the scene.

As he spoke, he took out his police ID card and said, "I am Miao Zhishun, Senior Inspector of the East Kowloon Serious Crime Unit, is it the deceased you found?" Take me to your sir. ”

Li Wensheng saw Inspector Miao Zhishun from a distance, and immediately greeted him: "Miao sir, I haven't seen you for a long time!" ”

"Ah Sheng, it's you! I heard that you went to the police academy as an instructor before, but I didn't expect to meet you here. Miao Zhishun also recognized Li Wensheng.

"Do you know each other?" Another instructor next to him asked.

Li Wensheng opened his mouth and introduced: "When I was in the serious crime team before, Sir Miao was my commander!" ”

"At that time, I had just passed the inspector promotion exam, and I was still a rookie inspector, Ah Sheng was already a senior sergeant in the serious crime team, and Ah Sheng taught me a lot back then." Miao Zhishun said modestly.

Li Wensheng continued: "Miao sir has the nickname of 'King of Guns'. Back then, there was a sharpshooter in the Gun Club, who suffered from schizophrenia, killed several senior brothers in the police force, and finally died under the gun of Miao Sir. ”

"I've heard about that case, and I've heard that the psychopath was not only a sharpshooter, but also a master of changing guns, and he changed his pistol into a magazine of thirty bullets, and he suppressed several of our points with fire. It turned out that he was killed by Miao sir! Miao sir is really powerful. Another instructor next to him said.

"It's all old! In that incident, we also killed several brothers......" Miao Zhishun sighed, and then said: "Ah Sheng, let's talk about the old days later, let's introduce the case first!" ”

Li Wensheng opened his mouth and introduced: "The deceased is in front, the scene has been protected, it is suspected that he fell from the cliff above, I have been up to the cliff, and I found that there were footprints, and I also sent someone to guard it."

At present, the identity of the deceased has been determined, it is a tourist who climbed the mountain, and all the accompanying climbers have been found, including the son-in-law of the deceased. ”

"The forensic doctor followed me to see the body, and the forensic doctor first went to the cliff to collect footprints." Miao Zhishun immediately arranged it.

Seeing that the forensic evidence was about to go up the mountain to collect evidence, He Jiahui stepped forward and asked: "Sir Li, the forensic evidence is not familiar with the road up the cliff, so let me bring the forensic evidence over!" ”

Li Wensheng nodded: "Okay, you bring the forensic certificate up, and after you go up, listen to the forensic arrangement, remember not to touch things, so as not to destroy the scene!" ”

"Understood!" He Jiahui nodded.

……

Forensic is a young man who looks like he is twenty-five or sixteen years old, and He Jiahui estimates that forensics at this age should not have much experience.

He Jiahui came to the forensic brother and introduced himself: "My name is He Jiahui, and I will take you to the cliff where the deceased is suspected to have fallen." ”

"I'm Gao An, a chemist in the Forensic Evidence Department, and I'm tired." The other party spoke.

"Sir Gao, did your Forensic Department send you alone?" He Jiahui asked.

"Originally, my master was going to come, but I need to climb the mountain here, my master is old, I am afraid that I will not be able to arrive at the scene in time, so he sent me, I am young and have good physical strength." Gao An explained with a smile.

"Sir Gao, I see you have two toolboxes, I'll help you get one!" Ho Ka Fai offered to help.

"Thank you. However, it was packed with fragile items and precision instruments, so I took it myself. Gao An politely refused.

He Jiahui then persuaded: "The road to the cliff is not easy to walk, you are not familiar with the road conditions, and it is inconvenient to carry two toolboxes." If you fall, it will not outweigh the gains, but will delay the progress of the work. ”

"Alright then, I'll leave this box to you, but don't drop it." Gao An handed one of the toolboxes to Ho Jiahui.

The two of them went one after the other, and He Jiahui chatted without anything on the road, and soon became familiar with Gao An.

After all, He Jiahui is an experienced veteran criminal policeman, and in order to obtain useful information when solving cases in the past, he often approached strangers, and a young man like Gao An, who has no social experience, naturally can't resist He Jiahui's fooling.

"Gao sir, there are footprints in front." He Jiahui stopped and pointed to the road.

Gao An bowed down and looked at the footprints on the ground, then took out two sets of shoe covers from the toolbox, handed one to He Jiahui, and put on the other set himself.

"It looks like there's only one person's footprints, and you'll follow us for a while, don't break them." Gao An opened his mouth and commanded.

"Okay, I'll try to get out of the way." He Jiahui hurriedly agreed.

Gao An took out his digital camera and began to take pictures of the footprints, and then took out a ruler to measure the size of the footprints and the length of the steps between the footprints.

The footprints stretched all the way to the edge of the cliff, and Gao An also took a camera and took pictures all the way to the edge of the cliff.

Gao An observed the surroundings, took a picture with his camera, and said to the voice recorder: "There are only one person's footprints, which means that only one person has come up and been here, and there are no superfluous items at the cliff, and there are no traces of a fight."

In a moment, I will extract these footprints and compare them with the shoes of the deceased, and if I can confirm that these footprints are the deceased, then it will be confirmed that the deceased fell from here, and at the same time, I can rule out the possibility of his murder. ”

He Jiahui listened silently beside him, but his eyes were fixed on the pair of footprints closest to the edge of the cliff.

That's a very complete pair of footprints.

"This Gao An is still young and inexperienced, so he ruled out the possibility of killing him so easily, and did not find such an important suspicion! But this kind of method, that is, fooling the rookie, can't fool me! ”

He Jiahui had already discovered the suspicions, and his brain was quick to think.

"In the current situation, the scope of the murderer can basically be locked, but the most critical evidence is still lacking. If I were the murderer, where would the evidence go? ”

……

Gao An completed the forensic sampling and walked down the cliff with He Jiahui to return to the place where the body was found.

"Did you find anything?" Miao Zhishun asked.

Gao An stepped forward and replied, "Only one person's footprints were found on the cliff, and no personal belongings were found other than that, and no traces of a fight were found.

I have taken a sample of the footprints, and I will then take samples of the deceased's shoes and compare them with the shoe prints to see if the footprints on the cliff belong to the deceased. ”

"Okay, I'll wait for your report." Miao Zhishun said.

At this time, the forensic doctor also finished his work, and Miao Zhishun immediately asked, "Did the forensic doctor find anything?" ”

"The time of death of the deceased was probably between one hour and two hours, and the preliminary judgment was that the skull was violently impacted, resulting in skull fracture and intracranial hemorrhage, and the deceased's ribs were also fractured, accompanied by visceral hemorrhage, which should be an impact injury caused by the deceased when he landed." The medical examiner replied.

"Are there any scars from the fight?" Miao Zhishun asked again.

"On the surface, there are no injuries from the fight, but if you want to confirm it, you have to go through an autopsy!" The medical examiner replied.

He Jiahui next to him listened silently, and secretly said in his heart that there was no problem with Miao Zhishun's idea of solving the case.

There are three key points in the detection of a fatality from a height, the first is the forensic autopsy. The height of the fall can be estimated from the characteristics of the scars on the corpse, and the location of the fall can be determined.

In the wild, this may not be useful, as the crash site is clear at a glance. However, in a city with many high-rise buildings, it is important to confirm the location of the fall.

In addition, the medical examiner can also determine whether there are any injuries on the body that were not caused by the fall.

If so, then it cannot be ruled out that the deceased was thrown down the stairs after being beaten, or forced to jump off the building, or committed suicide because of the violence he received.

The second key point is the investigation of the fall path.

The fall path consists of three parts: the starting point, the landing point and the fall line. The starting point is the last position of the deceased before the fall, where the last information of the deceased can often be searched, which is very important for judging the cause of death of the deceased.

For example, whether there are footprints at the starting point, how many people's footprints, whether there are traces of stampede, whether there are traces of fighting, whether there are blood stains and hair, are all very important evidence.

The inspection of the landing site is mainly to see whether it is consistent with the position of the starting fall, and whether there are corresponding traces on the ground where the landing site is located, and whether there are any items related to the deceased around.

The fall line is the route that the deceased travels through in the air, and if there are things such as tree branches, wires, clotheslines, awnings, etc., on the path of the fall line, it will come into contact with the body of the deceased, and it may leave useful information on it.

The third key point in solving the high fall case is the questioning, including the relatives, friends, colleagues, neighbors of the deceased, and the witnesses at the scene of the crime.

The purpose of the inquiry is mainly to find out whether the deceased committed suicide before his death, whether he had a grudge with others, whether he had financial disputes, whether he had emotional involvement, whether he had mental illness, and whether he had any abnormal performance recently.

Sure enough, after listening to the forensic report, Miao Zhishun planned to question the relatives of the deceased.

"I heard that the deceased's son-in-law is here, he should know more about the deceased's situation, go to him to record a confession!"