Gu Chen naturally didn't take Comrade Zhang Jingde's indifference seriously. After policeman Xiao Li escorted Wang Xiaoliu into the police car, he got in and the gang returned to the scene of the crime.
"Bring Wang Xiaoliu here, I want to compare the footprints." Zhang Jingde took out his cigarette, looked sideways at Gu Chen, and said to Xiao Li.
Xiao Li is his apprentice and is in his fifth year at Xingfu Community Police Station. Compared with ordinary trainee police officers, he is obviously more professional.
Zhang Jingde has also met many trainee police officers like Gu Chen who have just graduated. He naturally knows some of the personality traits of trainee police officers, so he doesn’t expect Gu Chen to help. He just wants to keep him with him so that he can learn more.
Get some experience.
"Tell me the characteristics of the footprints at the scene." Comrade Zhang Jingde took a puff of cigarette and said to Xiao Li.
"In the mud at the scene, I found a pair of size 43 shoe prints, and they were travel shoes with wavy patterns..." Xiao Li answered quickly and professionally.
Just by looking at the vague footprints in the dirt, you can accurately determine the shoe size, shoe type, and main texture, all of which have been investigated in advance.
However, Zhang Jingde wanted to tell Gu Chen what professionalism was.
Comrade Lao Zhang looked at Gu Chen and said to Xiao Li: "Bring him over for comparison."
Wang Xiaoliu quickly followed Zhang Jingde's request, walked a few more steps around the original footprints, and then returned to Zhang Jingde.
"What else do you have to say?" Zhang Jingde said angrily, pointing at Wang Xiaoliu with the finger holding the cigarette: "These are obviously your shoes."
Wang Xiaoliu came up to take a look and said, "There is a slight resemblance, but how can you say it's me?"
"Because I have investigated you." Zhang Jingde also said calmly: "You are Sister Hu's distant cousin, and you often visit Sister Hu's house."
Xiao Li also added: "You often help Aunt Hu purchase fabrics, so you go in and out of Aunt Hu's house a lot, and you are most familiar with Aunt Hu's golden Buddha, because this golden Buddha is usually placed in Aunt Hu's house.
Only you kid knows about the partition under the bed."
"But...but I have proof of alibi." Wang Xiaoliu showed his trump card and said with a depressed look: "No matter what, I can't be a clone, right?"
One sentence gave Comrade Zhang a headache again...
If it weren't for this alibi, Zhang Jingde would have closed the case long ago.
"Huh? Where is Gu Chen?"
While Zhang Jingde and Xiao Li were interrogating, Gu Chen had already passed through the cordon and took two pictures of the footprints with his mobile phone.
Then he found a small wooden stick and poked it back and forth in the middle of the shoe prints.
Gu Chen thought that just by relying on Wang Xiaoliu's alibi, he might be able to rule out the possibility that he was the suspect.
But if you always focus on this clue, you may easily miss other clues.
But if the only outsider who knew about the Golden Buddha was Wang Xiaoliu, then the footprints would be a bit strange.
Gu Chen recently used his specialized memory to master "Traceology".
Through quick memory, I used these days to cram some professional knowledge that was difficult to master in the police academy into my head.
Now it seems that it may come in handy. Gu Chen used a simple wooden stick on site to make a three-dimensional measurement of the two footprints.
"They are indeed size 43 travel shoes, and they are the same shoes on Wang Xiaoliu's feet." Gu Chen nodded, agreeing with Comrade Zhang Jingde's investigation results just now.
Xiao Li, the policeman on the side, couldn't help but snickered twice, thinking that this has all been investigated. Do you still doubt that Lao Zhang's investigation level is not good? After all, he has been a policeman for so many years.
No matter how bad it is, giving you a lesson as a trainee police officer is enough.
Zhang Jingde coughed twice and said: "Okay, don't walk around in there, or you will destroy the shoe prints."
Gu Chen turned around and smiled: "I'll do it."
He walked up to Wang Xiaoliu and began to question Wang Xiaoliu further: "Since Aunt Hu is your distant relative, does she have any other acquaintances? Preferably they are women."
Wang Xiaoliu held his chin, paused and said, "I do have a niece who has a pretty good relationship with me. After all, we are all distant relatives, so we have some contact with her."
"That's right." Gu Chen nodded and continued: "I know that Aunt Hu has no children, her husband divorced early, and she doesn't have many relatives in Jiangnan City. So you are one of them, and of course, there is the niece.
, what’s her name?”
"Lulu." Wang Xiaoliu replied.
"How is her relationship with Aunt Hu?"
"Not good." Wang Xiaoliu shook his head and said: "My cousin was very kind to Lulu, but since my cousin divorced, my distant cousin went to other provinces to do business, and we haven't interacted with her since.
But my cousin is very unfriendly to Lulu, and they often quarrel when they meet."
Hearing this, Zhang Jingde and Xiao Li both looked at each other.
As a police officer in the area, he didn't know that Aunt Hu had such social connections, but how did Gu Chen think of it?
In fact, Gu Chen, using his expert memory, was able to see something fishy about the shoe prints based on the trace science he had mastered.
Now combined with master-level logical reasoning, you can quickly find some relevant clues.
In contrast, Zhang Jingde and his apprentice Xiao Li obviously had a somewhat fixed mindset and always regarded footprints as the only criterion, but ignored other derivative clues.
"Gu Chen, did you discover something?" Zhang Jingde suddenly asked, his attitude became much more modest.
"It's still footprints." Gu Chen said: "The footprints at the crime scene are deep in the middle and shallow at the edges. Although the footprints Wang Xiaoliu stepped on are exactly the same as the crime scene, they don't have this strange phenomenon. This makes it very clear.
That explains the problem.”
"What's the problem?" Xiao Li on the side was also very curious. He had already forgotten Gu Chen's behavior of snickering just now.
Gu Chen didn't play it off, and said directly: "According to "Traces Science", there is only one explanation for this situation, and that is, this pair of shoes seriously does not fit."
Zhang Jingde and Xiao Li instantly transformed into primary school monks and entered lecture time again.
Neither of them had ever learned this kind of knowledge, but now that they heard Gu Chen say it, they found it a bit interesting.
"The specific research objects of criminal traces are generally handprints, footprints, tool marks, the relationship between bullet marks and other substances, the marking medium of the traces, freshness, etc."
“Studying crime traces can determine the suspect’s height, age, walking posture, crime tools used, movement habits, etc., providing scientific basis for exposing and confirming crimes..."
After listening to Gu Chen's brief explanation, Zhang Jingde suddenly realized that he seemed to understand something.
"So, the footprints left at the scene should be that of a woman, and she came here wearing Wang Xiaoliu's shoes to commit the crime?"
Although Zhang Jingde has never studied "Traceology", he has rich experience and is a very fast learner.
Based on the clues provided by Gu Chen, he quickly deduced that the perpetrator might be a woman.
However, Wang Xiaoliu's words made him feel discouraged, and the breakthrough he finally found was shattered once again.
