Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

The projector was switched, and what appeared was the result of Lu Chuan's calculation.

"The victim was between 1 and 63 meters tall."

"In addition, yesterday afternoon we conducted an identification of the nail-like objects found within the skeletal ashes."

The photo switched again, and it was the small nail-shaped object that Lu Chuan and others found in the ashes.

"This object is made of stainless steel. After identification and analysis, it was confirmed that it is a bone nail used in the repair of fracture damage."

"Generally speaking, this type of bone nail is relatively expensive and is only used for broken parts of certain small bones."

"I suggest that we can conduct a survey of hospitals across the city based on the usage of this bone nail, and it is possible to find some relevant information."

When Lu Chuan said this, everyone was excited.

A small bone nail, although not big, can make a significant difference in solving the case precisely because of its rarity.

"Also, we found this in the ashes, a broken birth control pill."

"So it can be initially determined that the victim is female, and we have checked the information about this contraceptive ring."

"This is an old-fashioned contraceptive ring that was popular more than ten years ago. However, most of the contraceptive rings implanted in the body now are made of silicone or plastic, and stainless steel is rarely used."

"So it is initially confirmed that the age of the deceased should be around 30 or 40 years old."

"Combined with the degree of wear and tear on the remaining teeth of the deceased, it can basically be locked in that he was between thirty-five and forty years old."

"There are also some button remnants and zipper remnants, as well as some iron beads."

"We also conducted a detailed analysis."

"The button and zipper residues should be the remaining ashes from the clothes on the deceased's body, and the iron bead residues may be the residue from the burning and melting of the bra wire."

"But because the sample size is so small, we're not sure."

Qin Yong listened carefully to Lu Chuan's report.

The gender, approximate height and approximate age range of the victim have been locked, which is of considerable value in solving the case.

Although the specific time of death of the victim cannot be determined from the ashes of the skeleton, judging from various traces at the scene, it is at least more than a month.

But it will most likely not exceed three months.

Because the grass on the mountain was still green three months ago, but judging from the burning scene, the grass was already withered and yellow when it was burned.

Haizhou City has entered autumn, and the green color will completely fade away in mid-to-late October or early November.

Therefore, the time when the deceased was killed should be around mid-to-late October to early November.

Combining the approximate body shape, age information and gender information of the victim that Lu Chuan did, we can compare the missing persons in this time period.

Maybe we can determine the identity of the deceased.

Coupled with the titanium alloy bone nail, it is very possible to further determine the scope of the victims through visits to the orthopedics departments of major hospitals.

"Is there anything else?"

Lu Chuan nodded: "There is another more important message."

Oh?

Qin Yong did not expect that Lu Chuan had more important information in his hands.

"Tell me."

"Bone fluorosis!"

Ok?

Bone fluorosis?

Some people seem to have heard of this disease, but some people are more curious. What is bone fluorosis?

Lu Chuan began to explain.

"The so-called bone fluorosis is a disease caused by people drinking water with a relatively high fluoride content for a long time or being exposed to some fluoride, which leads to the accumulation of excessive fluoride-containing substances in the body, which can lead to osteoporosis."

"Typically, outbreaks of this disease are regional."

"For example, in grassland areas, the fluoride content of groundwater in some areas is relatively high, and most people living in this area will have similar symptoms." "In a general sense, it can be understood as an endemic disease."

"You mean...that this endemic disease exists where the victim lives?"

Lu Chuan nodded and shook his head.

"I checked and found that there are no similar endemic disease clusters within a radius of 300 kilometers around Haizhou City."

"That means the victim is most likely not a local."

"But what we found at the scene was that the murderer's tool for transporting the body was a tricycle."

"According to yesterday's investigation by Lao Bai and the second group of comrades on the three brands of tires, the maximum range of the tricycle is 200 kilometers."

"With a high probability, considering the convenience of the murderer dumping the body and the convenience of traveling back and forth, the possibility of the murderer refueling midway is very small."

Lu Chuan's judgment was recognized by most people.

The murderer drove a tricycle to transport the body. If he refueled in the process, it might cause unnecessary trouble or even expose him.

Moreover, the murderer could choose to go to the Beishan Valley to dump the body and burn it, which shows that he has a certain understanding of Beishan.

So if the distance is particularly far, this possibility is indeed relatively small.

"Of course not local, just one of the possibilities."

Lu Chuan switched photos again, and what appeared was a set of numbers.

"I looked up the basic characteristics of bone fluorosis."

"After more severe bone fluorosis accumulates to a certain extent, fluorosis will form on the teeth."

"Because most cases of bone fluorosis are caused by drinking excessive amounts of fluoridated water. When drinking water, the first thing fluoride-containing substances corrode is the teeth."

"Usually, bone fluorosis and dental fluorosis co-exist."

"However, the higher fluoride content we found in the bones indicates that the other person's bone fluorosis is more severe."

"But we found no symptoms of dental fluorosis on the deceased's teeth."

"This shows that the other person's bone fluorosis is most likely not acquired through oral intake of food."

"In addition to oral ingestion, bone fluorosis can also be contracted through inhalation of air, skin contact, etc."

"So, from a probability perspective, I think the victim may have been exposed to fluoride-containing chemicals for a long time, but he did not live in a place with high fluoride-containing water."

"So I suggest that during the investigation, some efforts can be mobilized to carry out focused screening of people who are frequently exposed to fluoride in Haizhou City."

Lu Chuan's analysis can be said to be very valuable.

No one expected that so many clues could be revealed from the few residues found in the ashes of the bones.

Now the victim's approximate height information, age, gender, and all possible occupations have a certain range.

This makes troubleshooting relatively simple.

The first case analysis meeting ended successfully.

Action Team 1 and Action Team 2 were all busy.

Zhang Hui sorted out the victim's basic information and distributed it to all police stations.

The investigation of missing persons mainly focuses on the police station, so if they are responsible for identification, the possibility of discovery is greater.

Soon, before noon arrived, messages came back one after another.

Among the three pieces of information returned, one attracted everyone's attention. (End of chapter)