A new police officer joins the team and solves a major dismemberment case

Early the next morning, Han Xu and Chengzi entered the criminal investigation office area together after having breakfast in the police station cafeteria.

The remaining key members of the second group were already waiting there.

A few people first held a simple meeting to share the information they found.

Xiao Xiao has issued an autopsy report. The third deceased did die from mechanical asphyxia. The wound on his back caused excessive blood loss, which accelerated the death process.

Some marine mollusk food residues were extracted from the stomach contents of the deceased, and it is speculated that the last meal should have been the night before.

Xiao Xiao also detected excessive purine levels in the deceased's body, and speculated that the deceased's long-term consumption of seafood resulted in excessive uric acid levels.

Chengzi didn't understand and asked confusedly, "What does that mean?"

Xiao Xiao explained, “If you often eat some seafood, and also eat too many acidic foods and high-purine foods, it may lead to excessive uric acid content in the body. If uric acid cannot be excreted, it will form deposits in the body, and even It can also induce gout..."

Chengzi still didn't understand and was about to ask again.

Han Xu took over the topic, "What Xiao Xiao means is that the third victim was probably imprisoned for a period of time and forced to eat a lot of seafood, which led to the occurrence of these symptoms."

"As expected of Team Leader Han," Xiao Xiao nodded and continued, "That's what I want to say. The deceased had consumed a large amount of seafood for a long time, and it was very likely that it was not cooked, which also led to intestinal infections and lesions."

Li Le finally understood after hearing this, "No wonder I led people to search through several villages near the lighthouse where the crime occurred, and found nothing. What's even more strange is that the victim's household registration fingerprint information did not match. It turns out that The victim has been in captivity for a long time. So what do we do now?”

In this world, household registration fingerprint entry has only been implemented in the past two or three years.

That means that the victim was not imprisoned for only a few months, but could even last for several years!

Han Xu thought for a moment and said to Li Le, "You should continue to search for the identity information of victim No. 3 in your own way. We should start with victim No. 1."

Li Le felt a rare sense of frustration, but he had no good solution, so he could only nod in agreement.

The progress on Lao Zhang's side was not smooth either, because two of the three lighthouses were too remote and there was no monitoring at all for investigation.

There is only one place, near the No. 2 Lighthouse in the scenic area, with monitoring probes installed.

But because there was so much traffic within the scenic area, Lao Zhang had panda eyes in his eyes and still found nothing.

Monitoring found nothing.

Han Xu had no choice but to put all his hope on the bloody brick.

Just at this time, the Trace Inspection Department came out with the results.

Han Xu asked everyone to disperse and do their own thing.

Li Le continued to lead people to cast a net around Victim No. 3. He had processed information about the victim's appearance, and believed that the source of the body would be found soon.

Xiao Xiao, on the other hand, wanted to go to Xizhi. She wanted to see the other two corpses. After all, photos were not as intuitive as the real objects.

Han Xu assigned Chengzi to accompany Xiao Xiao.

Then he went to the trace examination department alone.

After walking through the long corridor of the technical brigade, they saw Song Jiaer in a white coat waiting at the door.

"Why did you come here?"

Looking into Song Jia'er's clear eyes, Han Xu smiled and said, "I just had a meeting. Sorry, I came a little late."

"Hey, Xiao Xuxu, you've been promoted to team leader, why don't you say congratulations?" Zhao Kexin, the head of the Trace Inspection Section, couldn't help but tease Han Xu when he saw him coming in.

"Of course," Han Xu said casually, "I'll do it next time, I'll do it next time."

"Haha," Zhao Kexin glanced at Han Xu, "What's the matter, have you learned how to deal with you, Sister Zhao?"

"How dare I," Han Xu chuckled and changed the topic, "When this case is settled, I'll treat everyone to a big dinner right away."

"That's pretty much it. Okay, let's get down to business." Zhao Kexin pointed to the bloody bricks placed on the table, and before Han Xu could say anything more, she said, "We have tested the blood stains on it. Although it is contaminated, Some, but it can be compared with the DNA of victim No. 1 Lisa Liu.”

"Then it can be determined that this brick was the murder weapon used by the murderer to knock out the victim."

"Yes, but the fingerprints on it are very difficult to extract. I used many methods, but luckily, I was able to extract a fingerprint of my right thumb on the side of the brick."

After hearing this, Han Xu was shocked and said, "As expected of Section Chief Zhao, his professional ability is too strong."

"Don't rush to flatter me yet. Unfortunately, the fingerprint is not complete. Logically speaking, it does not qualify as evidence."

Han Xu had already guessed this result and sighed.

Unexpectedly, there was another twist and turn. Song Jiaer smiled and said, "Master, please stop teasing him."

"Hey, little girl, how long has it been since you learned to turn your elbows outward?" Zhao Kexin's head crashed onto Song Jiaer's delicate forehead.

When Han Xu saw this, he quickly protected Song Jiaer behind him.

Zhao Kexin frowned, covered her mouth and laughed.

"There's really nothing we can do against you two. Although the fingerprint is incomplete, it's lucky that it has 8 characteristics."

Han Xu understood.

Thirteen features are needed to identify fingerprint identity, but only 8 features are needed to deny identity.

In other words, even if the fingerprint is incomplete, as long as it has 8 characteristics, it has comparative value.

For example, it can be used to exclude criminal suspects.

It cannot be used as strong evidence, but it can be used to help eliminate suspects who may have committed the crime.

Han Xugang wanted to ask if he had compared his fingerprints with Guo Feng's.

Like a roundworm in his belly, Song Jiaer rushed to reply, "I already compared it as soon as I came here this morning. The fingerprints left on the bricks don't match the fingerprints Guo Feng registered in the household registration."

Han Xu didn't expect this result. He originally wanted to ask if the dripping blood stains left behind by the lighthouse of the No. 3 case had been compared with Guo Feng's DNA. But now it's better, the fingerprints can't be compared. It seems that Guo Feng's DNA was not matched before. Doubts were completely thrown away.

Seeing Han Xu's complicated expression, Song Jiaer consoled her, "Everyone makes mistakes, not to mention that your intuition is just wrong. Besides, Guo Feng had no time to commit the crime at all, and the fingerprints are not comparable now, so we can rule him out." Suspected."

Han Xu quickly collected his thoughts and replied, "Maybe I have preconceived ideas. Since the fingerprints cannot be matched, Guo Feng's suspicion can be ruled out."

"Okay, stop showing off in front of me and go do what you have to do!" Seeing that the business was finished, Zhao Kexin issued the eviction order.

"Chief Zhao, can you lend me Jia'er?" Han Xu shamelessly asked Zhao Kexin for help.

"It's against you. Can our Jia'er be used casually?" Zhao Kexin's brows were raised to the sky.

"No way, look at my stupid mouth, I didn't mean that!" Han Xu was finally convinced and chose to surrender with his hands up.

Song Jiaer guessed Han Xu's next plan, "Do you want to go to the crime scene No. 1?"