Chapter 1361

Pa!

Shen Yaowei slapped the file onto Wang Chuanxing's desk and said: "We've been waiting half an hour already, Wang bro, let's hurry up. I'm really anxious."

"Is the suspect in a hurry to die?" Wang Chuanxing joked, saw Shen Yaowei didn't laugh, shook his head and said: "Yaowei, you've changed. The old you used to speak so nicely..."

Shen Yaowei pouted: "The old me was a relation-backed hire, of course I had to speak nicely. Now I'm a technical detective, I respect the law and physics..."

"There's something to that." Wang Chuanxing laughed.

A detective from Anwan City Bureau who was also queuing nearby heard their conversation, chuckled and looked over, saying: "Everyone else goes from law and physics to connections—did you take the wrong turn?"

"The road is what people make of it." Shen Yaowei saw it was an unfamiliar detective, just gave a light reply, and thought to himself: Director Jiang likes it, what are you even?

Ga ga ga ga...

Wang Chuanxing printed a form for Shen Yaowei and said: "Your case has been transferred to the Nancheng District Bureau of Anwan City for handling. Take this form, go to their office to get a stamp, then directly send the suspect to the Nancheng District Bureau. Their office also has their phone number."

"Why is it still being downgraded?" Shen Yaowei was unhappy. He had painstakingly caught the suspect, who of course deserved a higher-level bureau.

Wang Chuanxing laughed: "Still thinking it's a few days ago? Now the situation isn't just good, not just great—it's superb. Hurry up and go, or by the time the district bureau fills up, the suspect will have to be sent out of the city!"

"Alright. That... if you have a search task, remember to find me." Shen Yaowei also wholeheartedly wanted to establish his "search expert" persona within the team—just grimly catching suspects, though not brain-intensive, was really boring.

Wang Chuanxing naturally agreed. With more cases to handle, all kinds of demands would arise, search-type tasks were still not few, and besides Shen Yaowei, most people didn't particularly like such tasks either.

After quickly finishing the document work at hand, Wang Chuanxing hurried to the lab, as he still needed to attend to Jiang Yuan—if he went late, Jiang Yuan might find someone else to attend to him.

Laboratory.

Two experts, Liu Changhe and Lin An, looked at Jiang Yuan with eager expressions as he performed image enhancement on the computer.

Their expertise lay in fingerprint extraction techniques, especially using different methods to reveal fingerprints—simply put, various ways to make fingerprints glow, then lift them.

This was naturally an important technical means, and also one of the core aspects of fingerprint technology.

However, obtaining fingerprints did not mean one could find the suspect; this process still required tedious steps and exquisite skill. Otherwise, the two wouldn't have rushed to find Jiang Yuan.

There are many experts proficient in various aspects at the ministry, but these two also lacked the ability to integrate these parallel resources for their own use. In contrast, Jiang Yuan, coming from the grassroots, mastered more comprehensive technology—this is like the pattern in companies: technicians at small firms often need to be jacks-of-all-trades, while those at large firms need a specialty to stand out.

Of course, technicians like Jiang Yuan—jacks-of-all-trades and genuine gold—are scarce in any industry. So even though Liu Changhe and Lin An were highly valued in the ministry, after coming to Anwan, they simply stayed peacefully by Jiang Yuan's side to work.

They now wanted to use new technology to crack several major cases; other things didn't matter.

Jiang Yuan was also freely experimenting with new technology.

After consecutively completing the appraisal of six fingerprints, Jiang Yuan carefully and boldly chose the major case "Cui Ling 211."

This was a particularly heinous extermination case, occurring on the morning of Lunar New Year's Day six years ago. The family of Zhang Guoyi, a medicinal herb purchaser in Cui Ling Township, Fangshan City—including Zhang Guoyi and his wife, their 15-year-old son, and his 68-year-old mother—were killed with a blade in their own villa.

Due to local custom, no New Year visits are paid on the first day; people start moving around on the second. Thus, the bodies of Zhang Guoyi's family were not discovered until the morning of the second day.

As everyone knows, during the New Year period, revenge killings and extermination cases occur at the highest frequency. When the enemy's family laughter of joy rings out, one's own anger becomes fiercer, more painful, and more unrestrained than usual. And for those who painstakingly plan to commit an extermination case, the New Year period is also a convenient time.

Police naturally followed the revenge killing direction. As a medicinal herb purchaser, Zhang Guoyi frequently visited surrounding villages, had considerable economic disputes and rivals, and himself was not a good-tempered person—many had offended him.

After a thorough investigation, however, no qualified suspect was found. While the New Year facilitated revenge by enemies, it also facilitated suspects providing alibis. Several suspected individuals basically only needed one round of interrogation before being sent home.

Thus, this case became the biggest case after the New Year, yet remained undetected. Follow-up investigation proved the case was likely a robbery-murder, but this conclusion only made the case grow cold faster.

Jiang Yuan chose this case partly because "Cui Ling 211" was heinous in nature and a well-known major backlog case in Pingzhou in recent years, and partly because the killer had left behind several relatively blurred but obvious bloody handprints.

The bloody handprints mainly came from the curtains and towel. This is also a common scenario when killing with a blade.

Friends who have never killed, when imagining a crime, often think of a clean, tidy killing—leaving no trace—but when they actually carry it out, they realize this perfect scenario is not easy to achieve, especially when killing four people—not only is it a test of the killer's stamina, but just ask yourself: is your blood-covered hand slippery or not?

Stabbing someone with a blade—those who know how to pull back their force count as experts.

Why do some blades have guards? If European swords still need front-end protection, then the guard on Chinese swords is merely to prevent the swordsman's fingers from sliding onto the blade, or to stop the swordsman from also thrusting the hilt in.

When people are excited, force is easily excessive. Killing is roughly an extremely excited state.

On the other hand, victims stabbed or slashed with a blade may initially be fearful, but once blades are upon them, they cannot avoid a death struggle—grabbing for weapons is also very common.

So, when the moment truly comes to kill with a blade, not only will there be blood all over the ground and walls, imagining wearing a latex glove or the like is not only unrealistic but also makes one easy to be counter-killed. In comparison, the cotton thread gloves commonly used by forensic medics are somewhat better.

But if it's serial killing, after killing the second person, a smart novice killer should also realize that taking off the glove and drying the hands is necessary.

Unfortunately, the criminal science personnel of Pingzhou failed to find the suspect's fingerprints or DNA from the bloodstains on the curtains and towel used for wiping at the scene.

After carefully examining the photos in the case, Jiang Yuan nevertheless felt quite hopeful.