Chapter: 53

As far as Wu Jun knew about criminal policemen, veteran criminal policemen like Wei Zhenguo, not to mention full of wit and tricks, definitely had quite a lot of methods to solve cases accumulated over the years.

Moreover, Wei Zhenguo must have thought about this arson case, otherwise, he would have just rejected it on the phone, why bother to come to the police dog squadron to meet him. Da Zhuang didn't give him a handjob.

Wei Zhenguo nodded Wu Jun with his hand, and laughed: "Old Wu is more thoughtful, I do have an idea, I think I can try it."

"You say."

"Criminals in arson cases generally don't only commit one case. As far as I understand, people who engage in such tricks are addicted. Some people, even if they don't want to commit crimes in their minds, they just start a fire." He may not be able to control where and how it burns." Wei Zhenguo paused at this point, waited for a few people to sort out their thoughts, and then said: "Five years ago, the person responsible for the arson case of a greenhouse At that time, I sorted out a few surrounding cases involving ignition and burning, thinking about whether they could be combined, but the conditions were not very good..."

Wu Jun interrupted and asked, "A case that was not brought up five years ago can be brought together now?"

"At that time, I wanted to join the case. I thought that after the merger, I could find experts in the province to compare fingerprints. If Jiang Yuan could directly compare fingerprints, he could arrest people first and then consider joining the case." Wei Zhenguo solemnly The matter said: "Before I came, I checked again. Before the Wenxiang arson case, there were three cases in the surrounding area, all of which were small cases. Incomplete fingerprints, some were not collected or not collected. None of them matched people. But I think these cases have something in common..."

Wei Zhenguo snapped his fingers and said: "First of all, Wenxiang is a remote place, few outsiders go there, and the crime scenes are all outside the towns, so it is likely that the locals did it, at least someone who is familiar with the place. Secondly, Wenxiang The number of arson cases and surrounding arson cases, four in three years, I think, is significantly higher than other townships in our county. Third, after the arson case in Wenxiang, there was no arson case in the local area. Running away, this can also explain why the platoon can't find anyone."

"Then, let's solve other small arson cases, and see if it can be involved in the Wenxiang arson case?" Jiang Yuan translated Wei Zhenguo's strategy.

Wei Zhenguo nodded, and said, "My plan is actually similar to Xiao Wang's. It's all about sidestepping and turning around from the side. However, it's actually easier for us to investigate small cases. Because there are cases, arrest and interrogation are all good. Go through the procedure. After arresting people, we have a small case to hold it, and it is easier to try things. There is another one, in case I make a wrong judgment, at least the case will be solved, right? "

Several people seemed much more relaxed, and they all nodded and said yes.

In fact, Wei Zhenguo's plan is more than one level superior to Wang Zhong's.

The strategy of the old criminal policeman is indeed more mature.

"Let's eat fried rice first, and when we're done, go back and look at the case." Jiang Yuan brought fried rice to everyone in high spirits.

Wei Zhenguo took a bowl of fried rice, stared at the orange-yellow rice grains, and said in a daze, "It's quite rare to invite someone to eat this."

Jiang Yuan first recorded the several cases that Wei Zhenguo mentioned on paper, and then searched for them one by one on the computer.

As Wei Zhenguo said, of the three cases in total, one involved forest land, which was serious arson, but no fingerprints were recorded. Although the fingerprints of the other two were recorded, one burned a tractor that was about to be scrapped, and the other burned an old house that no one lived in.

The fingerprints found by the latter two at the scene are very stretchy, not to mention incomplete, and deformed.

Jiang Yuan reckoned that the policemen from the local police station who did the on-site investigation at that time did not consider the problem of fingerprints going too far, so they just used powder and tape to stick it...

The fingerprints were sent to the trace inspection of the Criminal Division Brigade, not to mention whether they were taken seriously, but based on Jiang Yuan's accurate judgment of the strength of Lao Yan and others, they couldn't handle such fingerprints.

Of course, there is nothing to blame for this. Just like most ordinary people can't get into key universities, key middle schools, or key primary schools, their parents are not industry leaders, their families are not famous, they can't become elites in their fields, and they don't have the luck to lie down and hang out. …

The county bureau's requirements for technical police officers must not be at the level of TV dramas.

Fingerprints that do not reach the level of major cases are not valued by experts.

Cases with a value of only a few thousand yuan can only be dealt with conventionally.

However, it would be different if these three cases were involved in the arson case in front of the greenhouse.

"Sit down." Jiang Yuan returned to the office. Wei Zhenguo also followed.

As a criminal policeman, he is also a very busy person, but he still wants to see Jiang Yuan's level - trace inspection is the most familiar technical part of ordinary policemen, and he can basically check the fingerprints on the fingerprint card every day. it.

Jiang Yuan sat up straight, ready to take a good look at these fingerprints.

He first downloaded the fingerprints of the tractor burning case, then stared at the image, lost in thought.

When this fingerprint caught his eyes, Jiang Yuan felt familiar.