CHAPTER 1272: CHAPTER 1199 THEY JUST FOUND IT FUNNY

"Hello, which unit are you from? Do you have identification? Please show it."

Wang Chuanxing got up early, with dark circles under his eyes, standing at the entrance of Building 10, starting to register and index the visitors.

The sign at the entrance of Building 9 reads "Taihe Working Group" and "Jiang Yuan’s Accumulated Case Team," while Building 10 is the newly constructed grand hall this year. According to Huang Qiangmin, it’s at a level where heroic model meetings can be held in the county.

After Building 10 was completed, it was basically used for meetings and training sessions. This time, Jiang Yuan decided to host a class, and Huang Qiangmin arranged it here immediately.

Besides Building 10, the scale of the Ningtai County Bureau’s guesthouse has also been expanded and renovated. Conveniently, it arranged accommodations for the police officers coming to study.

With all the hardware conditions complete, Wang Chuanxing and others do not need Jiang Yuan’s instructions, as they automatically and conscientiously arranged the learning class process.

In terms of organizing activities, Xu Taining’s style of inspection is the most challenging for people.

Ordinary meetings and training with a few mishaps can be laughed off if participants don’t mind, but inspections do not allow for this. Once a problem occurs, participants themselves don’t know how to compensate.

This is similar to flood relief and water control constructions. The individualism shown in American movies cannot comprehend the collectivism of Chinese style due to their lack of similar experience, failing to understand that some mistakes cannot be the responsibility of a single person, hence the need for accountability.

For officers who have participated multiple times in Xu Taining-style inspections, organizing an event is quite easy.

Even if the number and scope of guests exceed expectations greatly, Wang Chuanxing and others still manage things systematically.

Only in their free time, they vent in a phone call to Huang Qiangmin: "A group from Pingzhou came, seemingly organized by their provincial department, with one or two people coming from each prefecture-level city. They said they’d solve accommodation issues themselves, so I gave them buffet tickets."

"Got it." Huang Qiangmin’s voice is calm and steady, seemingly echoed from underwater.

Wang Chuanxing, with a strong sense of ownership, said: "There are about twenty people, arranging positions and everything might be a bit cumbersome later."

"Don’t fear the big-bellied ones when opening shop." Huang Qiangmin’s voice was muffled as he said, "Earlier, guests from Chiyong City Bureau were settled. Whatever requirements they have later, just arrange directly, clarify the matters, and have them sign off."

"Understood, can sign off now." Wang Chuanxing replied.

Huang Qiangmin coughed twice and said, "Don’t be too blunt, give them a good experience without much hassle."

"Got it." After finishing the call with Huang Qiangmin, Wang Chuanxing continued his post, processing various procedures for the guests.

Though they came to Ningtai County for learning, those who could afford travel expenses and were dispatched by their units were at least the "backbone police" from various places, people you might not be able to find on official business outside. Since they were attracted here, arrangements must be adequately made.

The global police are one family. You cannot only be a family when visiting others’ places — Little Joseph.

Inside Building 10, all arrangements were set at meeting standards, with a group of interns preparing tea and snacks for the big shots, standing in the corners of the hall, eager to listen as they looked up expectantly at the stage.

Jiang Yuan was still chatting with the guests at this time.

On the makeshift podium, there’s a stack of case files, all of which were small recent cases that occurred in Ningtai County, brought over by Jiang Yuan as teaching tools.

Police officers attending the class know the field, flipping casually, they understood these cases were brought over based on time order.

So many cases, and none resolved, without saying they were entirely unfiltered, but basically that’s what it equated to.

It’s well known that minor cases may not necessarily be solved; some are quite challenging.

Because there are too few traces left.

Jiang Yuan dared to stack so many cases here, which in itself unmistakably indicates issues.

However, criminal police have a skeptical tenacity. Even if evidence is laid before them, they examine its source and authenticity. Jiang Yuan brought a bunch of cases out, sparking some probing naturally.

Jiang Yuan answered casually in return, thus gaining an appropriate understanding of the attendees’ levels.

Since a learning class was initiated, there definitely has to be effective learning. Otherwise, it would just be wasting his own time.

Different people have varied views on cases, investigation perspectives are often bizarre and unconventional.

Generally speaking, ordinary criminal police use one or two, at most two or three methods to solve cases. Classics like the cowboy policemen in some American movies often just take a cursory look at the scene and then hunt down motives and modus operandi, more brutal ones may even employ physical interrogation to gather information.

Whereas, in provinces and cities domestically, the techniques and approaches employed vary with local emphasis. This is related to both the local police handling habits and conditions for case handling.

For instance, police officers in Shannan Province and Luo Jin City can try applying forensic botany, while elsewhere, even with such an idea, it’s mostly unfeasible, and won’t be used until the last desperate step.

This regional difference is often one of the reasons roaming offenders are caught. Like a lock, drifting amid numerous keys, eventually, there’s one that opens it.

Jiang Yuan continued chatting with the visiting officers while waiting on time.

When his watch’s time reached 9 o’clock, Jiang Yuan stood up and said: "Let’s begin. Previously, I posted some information in the group, everyone should have seen it. We explain using practical cases, what’s currently going on is the Sunshine Supermarket theft case. The case itself is small, with stolen goods causing losses not exceeding 5000 yuan, actually about 3000 plus yuan. But an intriguing aspect of this case is the offender taking a towel from the scene, providing an opportunity for our forensic botany to be utilized."

As Jiang Yuan waved his hand, Wang Chuanxing, having returned to his post, immediately played the PPT prepared last night.

The first few slides detailed the case, which Jiang Yuan mercilessly skipped with the remote, directly showcasing photos under an electron microscope.

Microscopic pollen and spores appeared straightforwardly before everyone.

After a couple of coughs, Jiang Yuan said: "Let me talk a bit about some basic principles of our forensic botany. Using this as an example, identifying types of pollen and spores, followed by counting, is the very fundamental first step... Judging these plants’ living environments based on spores is the second step... The third step, which is the most challenging, involves determining the positions of these plants based on spore maps."

Seeing everyone listening attentively, Jiang Yuan nodded slightly before continuing: "These steps are quite similar to DNA and footprint identifications; sometimes it requires technique, occasionally a bit of luck, and sometimes a lot of groundwork... Of course, controlling the ground is crucial, just like Ningtai County and Qinghe City, where we’ve done extensive preparatory work in forensic botany..."

"Oh, right, Ningtai County already has a plant map, doesn’t it?" someone responded.

"Yes." Jiang Yuan nodded, an expenditure comparable to a building’s budget could be showcased as a benchmark.

"So..." One criminal police changed the topic: "What does the towel wipe over? Can’t we get DNA from it?"

"The offender likely wiped clothes and shoes with it, lacking sweat stains." Jiang Yuan explained.

"There’s still..."

Jiang Yuan gestured: "Let’s start with the initial solution first, avoiding too many routes now. First, I’ll teach everyone how to preserve and protect evidence on forensic botany..."

He didn’t plan to spend a lot of time on forensic botany. This part would be around 10 o’clock, as he completed the matches on the maps himself.

This is professional stuff; can’t expect people to learn it in just a few days.

Once everything was set, Jiang Yuan took out a Ningtai County map, enlarged it, and drew a circle with a laser pointer on-site, saying: "The offender should be lingering around here for a long time. Next, we need field investigations. Well, our police officers have already gone; now we use another method..."

"Change method?"

"Change what method?"

"Investigate the same case twice?"

The criminal police on-site were a bit confused, starting to discuss heatedly.

Jiang Yuan coughed twice: "Since it’s the first case today, coincidentally we have related evidence sent over, we’ll solve it twice, just for a comparison, later on, we won’t be this wasteful, aiming for one method per solution. Well, for our second round, we borrow tool traces..."

"Isn’t it footprints?" Familiar with Jiang Yuan’s investigation style, one couldn’t help but shout out.

"For footprints, everyone is relatively familiar, do we need to do it again?" Jiang Yuan hesitated.

"Let’s compare once." The spectacle-watchers simply found it amusing at this moment.