civil forensic

When Jiang Yuan proposed to divide the case, Tao Lu had already been conquered.

Like this kind of suspected serial murder case, the detachment and even the sub-bureau are investigating and handling it at all costs.For example, the rare investigation of more than a thousand people in Shannan Province is not a problem at the Zhengguang Branch.

There is no need for the level of homicide backlogs, just ordinary homicides, or even any of the eight major serious cases, it is very common to organize an investigation at the level of a thousand people.To make Tao Lu or the director hesitate about the scale, at least 3000 people should be obtained.

How much does it cost to organize 3000 people to conduct an investigation?People who are often married can imagine how much it will cost to organize a wedding banquet for 3000 people without receiving gift money, at least this figure.

A multi-day investigation is equivalent to holding a wedding for several consecutive days...

Therefore, after such a detailed investigation, any clues are precious.

Jiang Yuan was able to find clues by relying on the dossier. This skill alone was enough for Tao Lu to make a decision, not to mention his previous glorious resume.

The "Rotting Corpse Case in the Rain" task force was quickly formed, and there were no tricks. It was still dominated by the two brigades of Liu Sheng and Cui Qishan. The criminal police of the brigade are also familiar with Jiang Yuan to a certain extent.

Criminal police is still an industry that is very particular about relationships. With a little trust, it must be much more convenient to do things.

the next day.

Tao Lu presided over the case analysis meeting, and said in front of all the criminal police: "In the last case, two murderers were arrested one after another, and the case as a whole went very smoothly. This is an extremely complicated case involving multiple victims. , including homicide cases of Chinese at home and abroad, including throwing and burying corpses and other acts, which have the nature of serial murders. The detection process of this case is very good, and the director has already asked for credit for everyone... But..."

Tao Lu said: "In the final stage of this case, some unexpected situations happened. This... is mainly due to my decision-making mistakes. Don't worry everyone."

Without waiting for everyone to react, Tao Lu continued: "The celebration banquet can only be postponed. On the one hand, it is to determine the responsibility. On the other hand, the two murderers are involved in many cases, and there are many evidences that need to be fixed. We Here we have to wait for a while... But, the case waits for no one!"

Tao Lu looked at the crowd and said, "This time, the Jiang Yuanjiang team chose a very challenging case. The case of rotting corpses in the rain. If this case can be solved, it will be an excellent comfort to the victims and their families. For our detachment, it is also a good opportunity to prove our combat effectiveness...Well, the next time will be handed over to Jiang Yuan..."

Hearing this, Jiang Yuan stood up, smiled at everyone, took the remote control of the projector, tapped it a few times, and said, "The case of rotting corpses in the rain is a rather strange case..."

Liu Sheng and the others sat up straight and listened, not because Jiang Yuan's description of the case was so strange, but because Jiang Yuan himself was attractive enough.

"The rotting corpse case in the rain, there are four cases in total, and the evidence obtained is relatively small. The murderer knows how to clean up the scene and has a certain professional ability... The previous task force has also conducted investigations in this direction." Jiang Yuan said the professional ability, At least it must be at the LV2 level of on-site cleaning.

This is beyond the scope of spot cleanup such as wiping the floor and pouring some detergent.The meticulousness of cleaning, the order of cleaning, the objects to be cleaned, etc. are all very important, otherwise, the extra actions will only leave more clues for the police.

Jiang Yuan did not continue to talk about the direction of the previous investigation, and continued: "The identities of the four corpses are all clear, and there is also a lack of intersection in interpersonal relationships. However, in the process of reading the file, I found that the No. [-] corpse is The third case is significantly different from the other three cases."

Jiang Yuan casually clicked on the remote control and posted a few photos, some of which were the bloated corpses in the first case that lost their human form, and some that were discovered earlier but also changed their appearance.

Jiang Yuan explained his analysis to Tao Lu in more detail, and then said: "Some abnormalities in the No. [-] corpse are unreasonable. Especially in the presence of the No. The murder weapon, the position of the stabbing has been changed, and the force used has also changed, these are all abnormal, and from the current point of view, I tend to believe that the No. [-] corpse is a copycat crime."

"The details of the rotting corpse case in the rain have not been announced, how did you imitate it?" Liu Sheng couldn't help asking when he heard this.

Jiang Yuan nodded and said: "But it is not strictly confidential. Moreover, this case sounds complicated, but it is actually very operable. Killing people in rainy days, using a dagger, then wrapping the body tightly and discarding it, and at the same time strictly cleaning up the scene ..." "Easy to say but hard to do." Liu Sheng said slowly: "You must have experience in killing people, you must have experience in cleaning up scenes, and you must be good at using daggers..."

The more he said, the worse his complexion became. If you think about it from this direction, it is very likely that law enforcement officers committed the crime.And it's not that this kind of thing has never happened before. For example, Lao Mei has various scandals breaking out from time to time.

Jiang Yuan didn't care about this, and just said: "My suggestion is to divide the case into two parts again, one part is the third case, and consider the situation of imitating the crime separately. The second part is the three cases of one, two and four. Reconsider their connection. Concentrate efforts for now and give priority to the third case."

"If the third case is a copycat crime, even if it is solved, the corpse in the rain case will not be considered solved." Someone reminded in a low voice.

"The imitator of the third case may be able to break through the case of the rotting corpse in the rain with his overall understanding of the case." Jiang Yuan paused, and then said: "Of course, it is also possible to break through the case of the rotting corpse in the rain with a straight ball, but There is a sequence."

Jiang Yuan's criminal investigation ideas have always been simple and straightforward. If there are any characteristics, they are all based on his latest discoveries.

But I have to say that it is difficult to pick out faults with this kind of criminal investigation thinking, and Liu Sheng and others naturally have no objections.

Tao Lu asked: "Jiang Yuan, are you here to arrange work?"

"Come on, I'm going to stay in the laboratory today." Jiang Yuan said and explained: "Forensic botany is still very useful when the first scene of the moved corpse has not been determined."

For such an absolutely difficult case, which happened in the capital, Jiang Yuan did not consider the conventional plan from the beginning.

Skills such as crime scene investigation and footprint analysis are not uncommon in the capital. Experts at LV3 or LV4 level are not common, but they are easy to find when the special case team needs them.

In other words, to use this kind of skills to solve backlogged cases that previous experts failed to solve, LV5 is the base, and it may not be very easy to use. It took a month to study, and sometimes more senior experts were invited to study together. Even if Jiang Yuan changed to LV3, he didn't settle down and studied for a period of time, but he might not be able to produce results.

However, forensic botany is different.Not many people in the whole country know this kind of special skill, not to mention the capital city, and very few people can reach the level of LV2.

The most important thing is that the expert team of the rotting corpse case in the rain had not tried to use forensic botany before, which gave Jiang Yuan a lot of room to play.

Tao Lu and others naturally thought of the first case that Jiang Yuan came to do, and nodded repeatedly, hoping that Jiang Yuan could replicate the glory.

Liu Sheng and others automatically and consciously arranged their subordinates.There are a lot of things to do to restart the series of cases. Moreover, some criminal policemen also need to hand over the case at hand clearly.

Jiang Yuan went to the laboratory to collect pollen.

Time, place, and person, these three elements still play an important role in criminal cases.In the case of "rotting corpses in the rain", the time can basically be determined, and the identity of the victim has also been confirmed after multiple investigations. The only thing that was not found was the first scene.

But this time, Jiang Yuan is not sure whether forensic botany will be effective.

Compared with urban environments, forensic botany is actually more suitable for rural or wild states.

It takes time to open a new case, I didn't finish writing last night, so I went to bed first...