After the team members were assigned and tasks were assigned, Jiang Yuan plunged into the evidence room.
The eighteen members of Jiang Yuan's special team for backlogged cases are all criminal police officers. Therefore, someone has to take charge of the task of investigating the interpersonal relationships of the female warehouse boss.
Even though eight years have passed and many things have changed dramatically, most witnesses can still cooperate with a murder case, but it just takes a lot of time and manpower.
It is conceivable that some people may not be in Changyang City now, but there are still those who should be tracked and asked.
The evidence is different.
The evidence that can be used is lying quietly in the evidence room. The items that were not taken into the evidence room that day have disappeared in the long river of time.
The custodian in the evidence room spent a lot of time before taking out most of the exhibits in the 112 case, and after giving them to Jiang Yuan, he said: "Actually, you can tell from the photos. The photos taken now are all very complete.
Already."
"Well, thank you." Jiang Yuan didn't explain, and went to the next door with three evidence boxes in his arms, looking through them one by one.
Given the opportunity to receive first-class merit, Jiang Yuan finally chose mark inspection - tool mark inspection (LV6).
If the reward is left unfulfilled, it will not be effective. The tool mark test is something Jiang Yuan thinks is more suitable for him at this stage.
Forensic medicine also has forensic forensic science, but it is mainly used to deal with biological samples, that is, saliva, blood, semen spots and the like. The human body can also be disassembled into pieces, such as determining whether a bone fragment belongs to the skull or the knee.
If it's the former, it would be appropriate to add one murder case.
Tool mark inspection mainly solves several questions: what it was made of, how it was made, whether it was made for this thing, and the professional identity of the perpetrator.
In his daily work, Jiang Yuan felt that this area of demand was the most difficult for him to meet and what he needed most. So he naturally had to turn to the system.
If the self-selected 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 entangled thinking, Jiang Yuan still chose level LV6, but with a larger scope of tool mark inspection.
Judging from his current experience, LV6 level skills are really enough. When he reaches LV7 level, I am afraid that even the laboratory in Changyang City will not be able to satisfy him. What a waste if it turns into dragon slaying skills.
Moreover, as far as tool mark inspection is concerned, the full range of tool mark inspection is absolutely useful. However, if the types of tools are limited for the purpose of upgrading LV7, it will actually be quite restrictive.
After all, the police cannot control the murderer's choice of tools. Although the main weapon of choice for domestic murderers is knives, Jiang Yuan cannot accept that he sees knife marks like gods and hammers like pigs.
Even with the LV6 level tool mark inspection, Jiang Yuan actually felt that he was overkill.
LV7 is most likely a Star Destroyer fighting mosquitoes, and there is too much firepower.
The most important thing is that Jiang Yuan is still full of confidence in the future. If he gets a first-class merit next time, or even a second-class hero model or a first-class hero model, he will naturally know what LV7 is like.
Sitting in the evidence room, using the lv6 tool mark test, Jiang Yuan saw all the evidence in his eyes as if they were talking, each one rushing to report his current situation, past situations, background, and reasons for his origins.
…
The evidence of 8 years has changed a lot, but no matter how big the change is, it is not enough to appreciate the skills of LV6.
Jiang Yuan wore gloves and passed the evidence one by one, with very little pause time.
squeak.
Another policeman walked in.
The administrator of the evidence room immediately stood up and said respectfully: "Captain Zhu."
"Xiao Li, help me get some evidence and I'll take another fingerprint." Zhu Huanguang, known as Captain Zhu, smiled at the administrator. Zhu Huanguang is a legendary fingerprint expert in Changyang City and has solved countless major cases.
, is the main force in receiving awards for meritorious service every year.
In the Changyang City Criminal Police Detachment, Zhu Huanguang also has a high status. When encountering fingerprints with difficult and complicated diseases, Zhu Huanguang will be found, and he will always be able to give satisfactory answers.
Even in provincial capital cities, fingerprint experts like Zhu Huanguang are a scarce resource. In the annual provincial fingerprint competitions and ministries and commissions fingerprint competitions, Zhu Huanguang is a god-of-war existence and has made many achievements for more than ten years. For the small evidence room
For young people like Li, Zhu Huanguang is a living legend.
Zhu Huanguang himself also enjoys the respect he receives in the police force.
When a person reaches middle age, life is likely to be unsatisfactory. His parents are old and sick, the economy is in crisis, his wife is overbearing, his children are naughty, his head is sparse, his figure is out of shape, and he has difficulty excreting... 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 other people's light.
Occasionally, Zhu Huanguang also enjoys sitting in the office and killing a murderer.
Zhu Huanguang waited for Xiao Li to collect evidence and glanced around leisurely.
The evidence room of the Changyang City Police Station is similar to a small supermarket. It is surrounded by nice-looking all-steel evidence cabinets, divided into many compartments, which were equipment purchased at the beginning of the construction.
Later, when the space was not enough, shelves were placed in the middle, evidence was put into evidence boxes, and boxes were stacked.
In the room adjacent to the shelf area, several large tables are placed, allowing police officers to inspect evidence and take photos. There are also cameras above the head, which can record the entire process.
When Zhu Huanguang saw this, his eyes were involuntarily attracted by a tall figure.
Jiang Yuan?
Zhu Huanguang actually recognized it at first sight, but he was afraid that he was hallucinating.
Jiang Yuan's impression on Zhu Huanguang was really profound.
Who has ever seen a fingerprint expert whose number of solved murder cases reaches double digits in a fingerprint battle?
It's not impossible. Every few years, we hear about something like this happening in a certain province, but who is so lucky to see it?
Who else is so unlucky as to face a fingerprint expert like this?
Zhu Huanguang still remembers the results ranking during the fingerprint battle.
At that time, Zhu Huanguang could actually see Jiang Yuan every day, but he never took a close look at Jiang Yuan.
Only then did Zhu Huanguang notice that Jiang Yuan was looking at a metal door lock.
After adjusting his clothes, the middle-aged Zhu Huanguang walked over and said hello: "Forensic Doctor Jiang, are you here to see the evidence?"
"Yes. A backlog of cases." Jiang Yuan also recognized Zhu Huanguang. The fingerprint battle lasted for more than a month. Zhu Huanguang was actually the fingerprint expert who had spent the longest time with him, because the two were involved in the office all year round.
Zhu Huanguang smiled, looked down at the door lock in Jiang Yuan's hand, and kindly reminded: "Actually, your fingerprint talent is so good, so just concentrate on doing fingerprints. Treat every day as a fingerprint battle, which is better than doing random cases."
Can use your expertise."
"That's right." Mr. Jiang Yuan couldn't explain to Zhu Huanguang. My LV4 Chongqing-style single-finger fingerprint analysis method, plus the LV4 Qingdao-style single-finger fingerprint analysis method, and the LV5 image enhancement, of course have
The set effect is good, but in terms of pure combat power, it should not be able to pass the LV6 tool mark inspection.
Therefore, just doing fingerprints is really a waste.
"I remember that you are particularly good at blurring fingerprints in images. Yes, you are also good at imaging." Zhu Huanguang recalled the past.
"Indeed." Jiang Yuan answered simply.
"Imaging is good, and your expertise in imaging should also be brought into play." Zhu Huanguang said, feeling envious again.
Imaging expertise is a really profitable specialty. If he has an expert level in imaging, he should not be short of money.
If there is no shortage of money, the wife will most likely not be unhappy. If the children have money to make up for their lessons, finding a few more good teachers will probably be of no use, but at least it can reflect the attitude of your father and me that I have tried my best.
While Zhu Huanguang was a little distracted, Jiang Yuan's attention gradually returned to the evidence. After looking at the photos for a while, he started to unlock the door.
The sound of clanking metal woke Zhu Huanguang up.
He watched Jiang Yuan dismantle the lock into parts, then put on a mask and looked closer.
"This is the mark of a marble hook in unlocking the door. My skills are average. There are so many marks on the list. I guess I have been playing for a while. I don't look like a veteran." Zhu Huanguang is actually not only a fingerprint expert, he is also a master of fingerprint inspection.
However, since the fingerprint examination, Zhu Huanguang's performance in fingerprints has become even better, and he has gradually specialized in doing fingerprints.
But Zhu Huanguang believed that he did not have time to delve into other skills of trace inspection, and Jiang Yuan was even less likely to have time. How old was he, even if he started practicing from his mother's womb...
"Actually, it's not just the traces left by the hook and pin used to hook the marbles." Jiang Yuan took out his mobile phone and started taking pictures, adding: "There are also traces of the newly issued keys and the marks of being poked open multiple times."
Zhu Huanguang was stunned. 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 specious and false, and couldn't help but ask: "What can the traces you mentioned multiple times prove?"
"It proves that someone first tried to open the lock with a new key, but the key was inappropriate, or for other reasons, he failed to open the lock, and then used a marble to open the door." Jiang Yuan paused and said:
"It shows that the crime was premeditated and the suspect had access to the key."
