After getting approval from her boss, Ma Yan decided to go for it. She held up the roll-brimmed hat on her head, and Wang Hu and Zhang Jie said seriously:
"This is your own choice. Now there is no way out. Let's let the police dogs catch the bad guy. Let me tell you, the police dogs will never be polite to the bad guys."
After Ma Yan finished saying this, she turned around and said to the trainer beside her;
"You have to be more careful later. You must not let the police dog bite the suspect to death. Do you understand?"
"Don't worry, leader, I can definitely stop the police dog when it takes its second bite." The trainer stood at attention and saluted Ma Yan with a military salute.
Ma Yan and Meng Liang took Wang Hu and Zhang Jie away respectively, leaving a distance of twenty or thirty meters between them. During the process of taking them away, Meng Liang whispered a few words in Zhang Jie's ear, asking him to
His mood was not so excited. Wang Hu walked very slowly while following Ma Yan, his legs were shaking unconsciously, and his face gradually turned pale.
After fixing Wang Hu and Zhang Jie on two chairs respectively, Ma Yan took the pair of shoes and retreated about 20 meters behind with the trainer, and chose a position between Zhang Jie and Wang Hu to stand.
From the positions of Wang Hu and Zhang Jie, we could clearly see the movements of Ma Yan's hands. She opened the seal of the plastic bag and exposed the back half of the shoes, allowing the police dog to take a good sniff.
After the police dog memorized the smell of the shoes, it turned around and walked to the place where Wang Hu and Zhang Jie were staying together. After biting its tail and sniffing around, it then raised its tail and raised its head to look at Wang Hu's face warily.
direction. After confirming the source of the smell, it turned around and ran towards Wang Hu.
When Wang Hu saw the police dog coming towards him, he unconsciously raised his feet and legs, hugged himself into a ball, and started shouting:
"No, no, it's not me."
The police dog came to a place five or six steps away from Wang Hu, once again confirmed the source of the smell, opened its bloody mouth and let out a low roar towards Wang Hu, then slowly bent its two front legs and made a gesture.
Secondary attack posture. Suddenly, the police dog let out a huge roar, and before the roar could end, it rushed towards Wang Hu like a bolt of lightning.
Wang Hu let out a heartbreaking shout:
"I said, it's mine, it's my shoe, hold it!"
The handler stopped the rushing police dog in time. He must not let the police dog hurt the suspect. What he did just now was just an act. Ma Yan and Meng Liang looked at each other, with understanding smiles on their faces.
While Meng Liang and Ma Yan were thinking about those two pairs of shoes, the case analysis meeting in the conference room was still in progress. Liang Shi remembered what Old Chen said at the corpse dumping scene yesterday, so he asked:
"Old Chen, what are those gray-black powders you found on the corpse?"
"This is also Dr. Bai's business scope. It is more professional for her to speak." Chen Bochao gave the right to speak to Bai Yunfei again.
Dr. Bai nodded and smiled slightly and said:
"In terms of experience, no one in Zhongjiang City can surpass Teacher Chen. He accurately judged what those gray-black powders were with just the naked eye. I just made some verifications based on Teacher Chen's experience."
"What kind of riddles are you, the old and the young, making? What are those powders?" Liang Shi asked anxiously, as if knowing what those powders were, he would be able to solve the case immediately.
"We found through observation that those powders have good fluidity and very fine particle size. They can burn after being burned and have a certain amount of heat. Then we did X-ray fluorescence spectroscopy on them. After comprehensive analysis, we concluded that those gray-black
"There is coal powder on the body, what does this mean?" Liang Shi said to himself.
"Through the examination of the corpse, we found that coal powder was only present on the exposed surface of the corpse and on the coat. This coal powder was not found on the body covered by clothes or on the underwear." Dr. Bai further explained.
"We will help you determine that these powders are coal powder. As for why they appear on the corpse, that is your business. We can only help you here." Lao Chen said.
Liang Shi nodded to acknowledge Lao Chen's words. After pondering for a while, he continued to ask:
"What about the other physical evidence? Anything else discovered?"
"There is also a very important piece of evidence, which is the mud block with tire patterns found in the mud inside the fence. After identification, we confirmed that it was the pattern of a Giti tire model 235/70R16. This
This type of tire is generally used on large SUVs, light off-road vehicles or pickup trucks." Dr. Bai answered.
"If we find that car, can you prove that this mud block was left by a certain car?" Liang Shi asked.
"This is difficult. If we just look at the tire pattern, we don't have sufficient reasons to prove that it belongs to a certain car. Nowadays, the quality of tires is very good, there are so many vehicles, and there are too many tires of the same model with similar wear and tear. But if
If we can extract soil with the same composition as this mud block from the car's tires, we can prove that it was left behind by this car." Dr. Bai patiently explained the reason.
Liang Shi lowered his head and thought for a moment, then suddenly remembered the fingerprint on most of his ring finger, and asked:
"Have you compared most of the fingerprints with the existing fingerprint database?"
"After comparison, there are no similar fingerprints."
"Okay, forensic scientists and evidence experts, do you have anything to add?" Liang Shi asked.
Chen Bochao and Bai Yunfei exchanged glances with each other, and both shook their heads.
After Liang Shi expressed his gratitude to the two experts, he glanced at the people at the venue and said:
"Everyone, it has been nearly 20 hours since the corpse dumping case occurred. Everyone has worked hard during this period. But we still cannot relax. Time is an opportunity for us. The longer it is delayed, the harder it will be to solve the case. So, we
We must immediately invest in the next stage of work.”
Everyone attending the meeting had red and swollen eyes and was mentally exhausted, but none of them complained or flinched. After hearing Liang Shi's words, they straightened their backs and waited for Liang Shi's order.
"Meng Liang and Ma Yan have already gone after the clues about size 42 shoes. I believe they will have results soon. Next, the main task of your Jiangbei brigade in Xingxue is to check the videos and copy the videos of all the necessary sections around the Longwan construction site.
Come down and organize people to screen, focusing on looking for vehicles using 235/70R16 Giti tires.”
"Yes!" Bian Xingxue and his subordinates replied loudly.
When the criminal investigators and technicians who attended the meeting left one after another, Liang Shi lit a cigarette and sat in a chair, lost in thought. Coal powder? Why was there coal powder on the body? Was he killed in a coal mine? Abandoned coal mine tunnels