civil forensic

Chapter 325 Tool Trace Inspection

After the team members were assigned and since the work was assigned, Jiang Yuan plunged into the evidence room.

The [-] members of Jiang Yuan's special class for accumulated cases are all criminal police officers, so the task of investigating the interpersonal relationship of the female warehouse owner is his own responsibility.

Even after eight years, many things have undergone tremendous changes, but for a murder case, most witnesses can still cooperate, it just takes a lot of time and manpower.

It is conceivable that some people may not be in Changyang City now, but those who should be tracked and asked are still indispensable.

Evidence is different.

The evidence that can be used is quietly lying in the evidence room, and those that were not included in the evidence room that day disappeared in the long river of time.

It took a lot of time for the custodian in the evidence room to take out most of the evidence of the 112 case, and after handing it to Jiang Yuan, he said: "Actually, it can be seen from the photos. The current photos are very complete. gone."

"Well, thank you very much." Jiang Yuan didn't explain, and went to the next door with three evidence boxes in his arms, looking through them one by one.

Jiang Yuan finally chose the trace inspection-tool trace inspection (LV6) for the reward opportunity for first-class merit.

The reward has been left uncashed, and it will not be effective, and the tool trace inspection is what Jiang Yuan thinks is more suitable for himself at this stage after thinking about it.

Forensic medicine also has forensic physical evidence, but it is mainly used to deal with biological samples, that is, saliva, blood, sperm spots and the like.The human body dismantled into pieces also counts, such as judging whether a piece of bone belongs to the skull or the knee, if it is the former, it will increase the murder case properly.

Tool trace inspection mainly solves several problems: what was used to make it, how to do it, whether it was made for this thing, and the professional identity of the perpetrator.

In his daily work, Jiang Yuan felt that this demand was the most difficult to meet, and it was also what he needed most.That naturally calls for help from the system.

If the optional skill reward for the first prize is more detailed, for example, if Jiang Yuan is willing to specialize in the inspection of a certain tool, it can reach LV7.

But after some not too tangled thinking, Jiang Yuan still chose the LV6 level, but with a wider range of tool trace inspection.

Judging from his current experience, LV6 skills are really enough.At level LV7, I'm afraid that even the laboratories in Changyang City won't be able to satisfy him. What a waste if it becomes a dragon slaying technique.

Moreover, as far as tool mark inspection is concerned, a full range of tool mark inspections is absolutely useful.But if the types of tools are limited in order to upgrade LV7, in fact, there are quite a lot of restrictions.

After all, the police have no control over the murderer's choice of tool.Although domestic murderers mainly use knives as their weapon of choice, Jiang Yuan can't accept that he looks at the marks of knives like a god and the mace like a pig.

It was the LV6 tool mark inspection, Jiang Yuan actually felt that it was overkill.

LV7 is most likely to be a star destroyer attacking mosquitoes, with too much firepower overflowing.

The most important thing is that Jiang Yuan is still full of confidence in the future, and next time he gets a first-class merit, or even a second-level hero model, a first-class hero model, he will naturally know what LV7 is like.

Sitting in the evidence room, using the lv6 tool trace inspection, all the physical evidence in Jiang Yuan's eyes seemed to be talking, one by one scrambling to report his current situation, past situation, background, origin and reason ...

The evidence of 8 years has changed a lot, but no matter how big the change is, it is not enough for LV6 skills.

Jiang Yuan was wearing gloves, passing through the evidence one by one, with very little pause time.

creak.

Another policeman walked in.

The administrator of the evidence room immediately stood up and said respectfully: "Captain Zhu."

"Xiao Li, help me get a piece of evidence, and I'll take another fingerprint." Zhu Huanguang, who was called Team Zhu, smiled at the administrator.Zhu Huanguang is a legendary fingerprint expert in Changyang City. He has solved countless major cases and is the main force who receives awards for meritorious service every year.

In the criminal police detachment of Changyang City, Zhu Huanguang's status is quite high.When encountering fingerprints with intractable diseases, Zhu Huanguang will be found, and he can always give satisfactory answers.

Even in provincial capitals, fingerprint experts like Zhu Huanguang are scarce resources. Zhu Huanguang is a god-level existence in the annual provincial fingerprint battles and ministries' fingerprint battles.For young people like Xiao Li in the evidence room, Zhu Huanguang is a living legend.

Zhu Huanguang himself enjoys the respect he receives in the police force.

When a person reaches middle age, life is unsatisfactory seven or eight out of ten.Old and sick parents, economic crisis, domineering wife, naughty children, sparse head, out of shape figure, difficulty in excretion... Only work and career light up the light in Zhu Huanguang's life.

Let him illuminate himself, illuminate others, and have the opportunity to extinguish the light of others.

Occasionally, Zhu Huanguang also enjoys sitting in the office, suppressing the life of a murderer.

Zhu Huanguang waited for Xiao Li to collect the evidence, and glanced around leisurely.

The evidence room of the Changyang Police Station is similar to a small supermarket.Surrounding it are all-steel evidence cabinets that look good, divided into many compartments, which are the equipment bought at the beginning of construction.

Later, the space was not enough, so I started to put shelves in the middle, and put the evidence into the evidence box, and stacked boxes one by one.

In the room adjacent to the shelf area, several large tables were placed, allowing the officers to examine evidence and take pictures here.There is also a camera on the top of the head, which can record the whole process.

When Zhu Huanguang saw this, his gaze was involuntarily attracted by a tall figure.

Jiang Yuan?

Zhu Huanguang actually recognized it at first sight, but he was afraid that he was hallucinating.

Zhu Huanguang was really impressed by Jiang Yuan.

Who has ever seen a fingerprint expert who solved double-digit homicide cases in a fingerprint battle?
No, every few years I hear about such an incident in a certain province, but who is so lucky to see it?

Who is so unlucky to match up with such a fingerprint expert?
Zhu Huanguang still remembers the results ranking during the fingerprint battle.

At that time, Zhu Huanguang actually saw Jiang Yuan every day, but he never took a close look at Jiang Yuan.

Only then did Zhu Huanguang notice that Jiang Yuan was flipping through a metal door lock.

After tidying up his clothes, the middle-aged Zhu Huanguang walked over and greeted him, "Doctor Jiang, come to see the evidence?"

"Yes. It's a backlog." Jiang Yuan also recognized Zhu Huanguang.The fingerprint battle lasted for more than a month, and Zhu Huanguang was actually the fingerprint expert who had been with him the longest, because the two of them were in the office all year round.

Zhu Huanguang smiled, looked down at the door lock in Jiang Yuan's hand, and reminded him kindly: "Actually, your fingerprint talent is so good, so just concentrate on making fingerprints, and treat every day as a fingerprint battle, which is better than doing random cases." Use your expertise."

"It's true." Jiang Yuan can't explain to Zhu Huanguang. My LV4 Chongqing-style single-fingerprint analysis method, plus a LV4 Qingdao-style single-fingerprint analysis method, plus an LV5 image enhancement, are of course useful. Suit effect, but in terms of pure combat power, it should not be able to pass the tool mark test of LV6.

Therefore, just doing fingerprints is really a waste.

"I remember that you are very good at blurring the fingerprints of images. Yes, you are also good at images." Zhu Huanguang recalled the past.

"Indeed." Jiang Yuan replied simply.

"The image is good, and the expertise of the image should be brought into play." Zhu Huanguang was envious again as he spoke.

Video expertise is a real money-making expertise.If he has an expert level in video, he should not be short of money.

If there is no shortage of money, there is a high probability that the wife will not be unhappy. If the child has money to make up lessons, it may be useless to find a few more good teachers, but at least it can reflect the attitude of your father and I who have tried our best.

When Zhu Huanguang was a little lost, Jiang Yuan's attention gradually returned to the evidence. After looking at the photo for a while, he opened the door lock with his hands.

The sound of tinkling metal awakened Zhu Huanguang.

He watched Jiang Yuan dismantle the lock into parts, then put on a mask and looked closer.

"This is the trace of hooking the marble to open the lock. The technology is average. There are so many traces on the list. It must have been ticked for a while. It doesn't look like a veteran." Zhu Huanguang is not only an expert in fingerprints, but also a master of trace detection.

It's just that Zhu Huanguang's performance on fingerprints has been better since the trace inspection, and gradually he specialized in fingerprints.

But Zhu Huanguang believes that he has no time to delve into other skills of trace inspection, and Jiang Yuan is even less likely to have time. He is only so old, even if he started practicing from the womb...

"In fact, it's not just the hooks used to hook the marbles and the traces left by the besie." Jiang Yuan took out his mobile phone and began to take pictures, and said: "There are also newly equipped keys here, which have been poked open many times."

Zhu Huanguang was taken aback, can this be distinguished?

He lowered his head and looked at the disassembled lock cylinder more carefully.

For a long time, Zhu Huanguang only looked at the plausibility, and couldn't help asking: "What can you prove by the marks you have poked open many times?"

"It proves that someone first tried to open the lock with a newly assigned key, but the assigned key was not suitable, or for other reasons, he did not open the lock, and then he opened the door by hooking a marble." Jiang Yuan paused and said: "It shows that the crime was premeditated, and the suspect has access to the key."

(End of this chapter)