Chapter 43 Sleeping Skeletons
Tianzhou City is the second largest city in the province, only slightly worse than the provincial capital.
But the economic development is much stronger than that of Haizhou, and the population is also larger.
Wang Changjiang is no stranger to the Tianzhou City Criminal Investigation Detachment.
In the past twenty years, the Haizhou Criminal Investigation Detachment has repeatedly requested technical support from the Tianzhou Criminal Investigation Detachment.
Wang Changjiang and Li Kai, the forensic doctor here, are classmates and have had professional exchanges and studies.
However, when Wang Changjiang came to Tianzhou City before, he didn't say he was acting in a low-key manner, but he definitely had to be low-key when asking for help.
Unlike now, Li Kai is by his side with an extremely unnatural smile, and Wang Changjiang’s head is almost raised to the sky.
"Old Li, I remember that the equipment in your forensic laboratory is better than ours, and they are all imported."
Wang Changjiang tutted: "Last time We also came to visit and wanted to buy it, but unfortunately we couldn’t afford it.”
Li Kai looked at his old classmate speechlessly: "I asked you to come to the Tianzhou Criminal Investigation Detachment, but you gave up on your own."
Wang Changjiang glared at Li Kai angrily: "Yuelan's family is in Haihai. Zhou, can I come to Tianzhou?”
Lu Chuan just followed and didn’t say much along the way.
He could see that Li Kai and Wang Changjiang had a good relationship.
“You were carried away by love.”
cut!
Wang Changjiang gestured with his middle finger: "Come on, let me introduce to you the investigating detective of our Haizhou Criminal Investigation Detachment, Lu Chuan."
"This is our master of technology, in skeletal identification. Expert. "
Of course Li Kai knew Lu Chuan, and it was Lu Chuan who Zhang Yuanchao recommended to help them conduct skeleton identification and analysis.
However, he did not expect that Lu Chuan was so young.
He looks like a recent college graduate.
"Officer Lu is really young and promising. You are the first in our province to be praised by Mr. Zhang, the number one forensic doctor in the provincial department."
Lu Chuan's smile was gentle: "Forensic Doctor Li, you're welcome, just call me Xiao Lu."
"I just did a little research on skeletal identification, and forensic doctor Zhang Yuanchao was ridiculous."
Li Kai waved his hand: "Zhang Yuanchao The forensic doctor used to work in the Tianzhou City Criminal Investigation Detachment, and to be recognized by him, he also recommended that he help us conduct skeletal identification and analysis. Officer Lu doesn’t have a lot of research.”
Li Kai obtained the skeleton identification and analysis report made by Lu Chuan through Li Changgeng of the Provincial Technical Identification Center.
To be honest, he didn't believe at all that this was an appraisal made by someone other than Zhang Yuanchao.
What's more, the other party is not even a forensic doctor.
"Lao Li, don't be polite, let's talk about the case first."
Wang Changjiang looked serious: "We are here with a mission this time, and we must do our best to assist you. ”
"For so many years, it has been the Tianzhou City Criminal Investigation Detachment that has given us support. This time, we can consider it a small favor."
Tianxia Criminal Investigation is a family, not to mention technical exchanges, cross-regional arrests of those who It's a common thing.
Standing in a car for several days and nights in one camp is something that any criminal police from any detachment has done.
So, for things like support, as long as you are busy, there is no saying no.
When talking about the case, Li Kai also looked serious: "The skeleton was discovered yesterday afternoon and was dug out by an excavator during the reconstruction and expansion of a highway."
"The skeleton is in the autopsy room. We have completed the skeleton restoration, but no obvious problems have been found."
Li Kai introduced, taking Lu Chuan and Wang Changjiang to the autopsy room.
On the steel dissecting table, a skeleton lay flat.
Lu Chuan put on three layers of gloves and carefully observed the condition of the skeleton.
“Been run over?”
Although the skeleton has been restored, the two ends of the sternum have broken and collapsed, and the entire chest can no longer support it.
Li Kai nodded: "We have conducted a carbon attenuation analysis on the bones and determined that the bones were buried at least fifteen years ago, which happened to be the time when the highway was built."
"We suspect that the deceased was buried first, and then was run over when the road was compacted by a road roller."
Lu Chuan walked around the body and observed carefully: "Has the identity been confirmed?" Li Kai shook his head: " We extracted the DNA information from the bones and compared it with the missing persons database, but without success.”
"So, we want to determine some physical characteristics of the owner of the skeleton through skeletal identification and analysis to see if we can confirm the identity."
After a brief investigation, Lu Chuan visited the forensic laboratory of the Tianzhou City Criminal Investigation Detachment.
To be honest, Lu Chuan was shocked.
As Wang Changjiang said, the Tianzhou City Criminal Investigation Detachment... is rich!
Look at the equipment in this room, spectrum analyzer, automatic bone density detector, bone age carbon attenuation analyzer, and variable frequency laser scanner...
With these things, Lu Chuan's skeleton identification and analysis time can be shortened by half.
Li Kai proudly introduced the functions and prices of various instruments.
There was a mix of pride and shame in his expression: "There are many things, and we all use them, but our ability to do comprehensive analysis is not good."
"When encountering this kind of case, we can only Please support me from above.”
After understanding the situation of the equipment, Lu Chuan continued to analyze the bones in detail.
The first thing is to clean up the bones.
Because it was buried, the bones were stained with some soil.
Before doing the skeleton identification, Lu Chuan had to clean up all the skeletons.
At the same time, the cleaned soil must also be tested for soil quality.
Taking out a small brush from the discovery box, Lu Chuan carefully cleaned the bones.
Of course, this small brush is not a LV brand brush.
It is a brush made of pig hair. The hair is hard and suitable for cleaning soil.
Although this work was very tedious, Lu Chuan did not let anyone help.
Every detail must be observed by Lu Chuan.
"The angle of the pubic symphysis...is less than 70 degrees, and the gender of the skeleton is determined to be male."
The male sacrum is long and narrow, and the angle of the pubic symphysis is between 60 and 70 degrees.
The female sacrum is short and wide, and the angle of the pubic symphysis is between ninety and one hundred degrees.
Of course, Li Kai and the others have already made these basic determinations.
“The bone age carbon test and analysis determined that the bone age was fifty-six years.”
“The bone wheel observation and analysis showed that the deceased’s age at the time of death was... forty years old.”
When judging age, Lu Chuan also took into consideration some other circumstances.
For example, hip osteophytes.
Adult bones generally have growths after the age of thirty, and more growths occur on the hip bones.
He was forty years old when he died, and the skeleton had existed for fifty-six years, which means that the deceased died sixteen years ago.
"There are fossil-like wrappings on the feet and ankles. The deceased suffered from gout during his lifetime..."
"The bone length... is 1.76 meters. The height before death plus the thickness of skin and flesh... is 1.78 meters."
The height of human bones is shorter than the height in life. Except for the flesh and blood of the feet, In addition to the thickness of the scalp, the fascia in the joints also has thickness.
After the skeleton is turned into a skeleton, these things will disappear.
"Analysis of bone density combined with height: the deceased weighed 80 kilograms, and the bone density was two percentage points lower than the average level. Combined with age analysis...the deceased had excellent living conditions...long-term lack of exercise."
"The average level of flattening of the tip of the tailbone is more serious than that of the average person...the deceased had been sitting for a long time before his death..."
In this time, Lu Chuan fully demonstrated his intermediate skeleton identification and analysis skills.
Because the skeleton is more complete, the information about the deceased is far more comprehensive than the identification and analysis of the skeleton done by Lu Chuan in the hot pot restaurant.
"As for the cause of death..."
Lu Chuan picked up the two sternums and compared them carefully.
(End of this chapter)