Gu Chen naturally didn't take Comrade Zhang Jingde's indifference to heart, and after the policeman Xiao Li escorted Wang Xiaoliu into the police car, he also sat on it, and a group of people returned to the scene of the crime.

"Bring Wang Xiaoliu here, I want to compare the footprints. Zhang Jingde took out his cigarette and looked sideways at Gu Chen, but said to Xiao Li.

Xiao Li is his apprentice, and he is also in his fifth year at the Happy Community Police Station, and he is obviously more professional than an ordinary probationary police officer.

Zhang Jingde has also seen many newly graduated probationary policemen like Gu Chen, and he naturally knows some of the personality traits of probationary policemen, so he doesn't expect Gu Chen to help, so he wants to take them with him and let him learn more experience.

"Tell me about the footprints at the scene. Comrade Zhang Jingde took a puff of cigarette and said to Xiao Li.

"In the dirt at the scene, a pair of 43-yard shoe prints were found, and they were tourist shoes, with ...... wavy lines" Xiao Li replied quickly and professionally.

Just by the faint footprints in the dirt, it is possible to accurately determine the shoe size, the type of shoe, and the main texture, which have been investigated in advance.

However, Zhang Jingde wanted to tell Gu Chen what a profession is.

Comrade Lao Zhang looked at Gu Chen, and said to Xiao Li: "Bring it 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's side.

"What else do you have to say?" Zhang Jingde didn't have a good air, and pointed to Wang Xiaoliu with his cigarette hand: "This is clearly your shoes." ”

Wang Xiaoliu leaned up and looked at it, and said, "It's a little bit like it, but how can you say it's me?"

"Because I've investigated you kid. Zhang Jingde also said calmly: "You are Sister Hu's distant cousin, and you often go in and out of Sister Hu's house." ”

Xiao Li also added: "You often help Aunt Hu purchase fabrics, so you have been in and out of Aunt Hu's house more often, and you are most familiar with Hu Da's Golden Buddha, because this Golden Buddha is usually placed in the partition under the bed, and only you kid know." ”

"Yes...... But I have an alibi. Wang Xiaoliu put on a killer trick and said with a depressed face: "Anyway, I can't be separated, right?"

In a word, it gave Comrade Zhang another headache......

If it weren't for this alibi, Zhang Jingde would have closed the case a long time ago.

"Huh, where is Gu Chen?"

When Zhang Jingde and Xiao Li were interrogated, Gu Chen had already crossed the cordon and used his mobile phone to take pictures of the footprints twice.

Then he found a small wooden stick and poked it in the middle of the shoe print.

Gu Chen thought to himself that just based on the proof of Wang Xiaoliu's alibi, he might be able to rule out the possibility that he was a suspect.

But if you keep an eye on this clue, it may be easy to miss other clues.

But if you know that the outsiders of the Golden Buddha are only Wang Xiaoliu, then this footprint is a little strange.

Gu Chen recently used his specialization-level memory to make up for "Traces of Learning".

Through quick memory, he used some professional knowledge that was difficult to master in the police academy before, and used these days to make up for the evil in his head.

Now it seems that it can also come in handy, Gu Chen used a simple wooden stick on the scene to make a three-dimensional measurement of the two footprints.

"It's indeed a size 43 travel shoe, and it's the pair of shoes on Wang Xiaoliu's feet. Gu Chen nodded, expressing his agreement with Comrade Zhang Jingde's investigation results just now.

Xiao Li, a policeman on the side, couldn't help but snicker twice, and said in his heart that this is all investigated, do you still doubt that Lao Zhang's investigation level is not good? After all, it has been done by the police for so many years.

No matter how bad it is, it's enough to give you a probationary police officer.

Zhang Jingde coughed twice and said, "Okay, don't walk around inside, be careful to destroy the shoe prints." ”

Gu Chen smiled back: "It's better for me to come." ”

He walked up to Wang Xiaoliu and began to ask Wang Xiaoliu further: "Since Aunt Hu is your distant relative, does she have any other acquaintances? ”

Wang Xiaoliu held his chin and paused and said: "There is a niece who has a good relationship with me, no matter how you say it, they are distant relatives, and there will be some contact." ”

"That's right. Gu Chen nodded and continued: "I know that Aunt Hu has no children under her knees, her husband also divorced early, and there are not many relatives in Jiangnan City, so you are also one, of course, and that niece, what is her name?"

"Lulu. Wang Xiaoliu replied.

"What is her usual relationship with Aunt Hu?"

"Not good. Wang Xiaoliu shook his head and said: "My cousin is very good to Lulu, but since my cousin divorced my cousin, my distant cousin went to other provinces to do business, and there has been no intersection since then, and my cousin is very unfriendly to Lulu, and the two often quarrel when they meet." ”

Hearing this, Zhang Jingde and Xiao Li both looked at each other,

As a police officer in the jurisdiction, I didn't know that Aunt Hu still had this social relationship, but how did Gu Chen think of it?

In fact, Gu Chen used his specialization-level memory to see the tiredness of shoe prints based on the traces he had mastered.

Now, combined with master-level reasoning, you can quickly find some correlated clues.

In contrast, Zhang Jingde and his apprentice Xiao Li are obviously a little solidified, and have always regarded footprints as the only criterion for judging, but have ignored other derivative clues.

"Gu Chen, have you found something?" Zhang Jingde suddenly asked, his attitude much more modest.

"It's still footprints. Gu Chen said: "The footprints at the scene of the crime are deep in the middle and shallow at the edges, and the footprints that Wang Xiaoliu stepped on, although they are exactly the same as the scene of the crime, do not have this strange phenomenon, which is very revealing." ”

"What's the problem?" Xiao Li on the side was also curious, he had already thrown Gu Chen's actions out of the clouds just now.

Gu Chen didn't sell it, and said directly: "According to "Traceology", there is only one explanation for this situation, and that is that these shoes are seriously ill-fitting. ”

Zhang Jingde and Xiao Li became elementary school monks in seconds, and once again entered the class time.

Neither of them had ever learned this kind of knowledge, but now that they heard Gu Chen say this, they felt a little interesting.

"The specific research objects of criminal traces are generally handprints, footprints, tool traces, the relationship between gunshot traces and other substances, the scarring medium of traces, and the freshness of traces. ”

"Studying the traces of the crime can determine the height, age, walking posture, tools used, and movement habits of the suspect, so as to provide a scientific basis for exposing and confirming the crime......"

After listening to Gu Chen's brief explanation, Zhang Jingde suddenly realized that he seemed to understand a little.

"So, the footprints left at the scene should be a woman, and she came here to commit the crime wearing Wang Xiaoliu's shoes?"

Although Zhang Jingde has not studied "Trace Studies", he has rich experience and his learning ability is quite fast.

According to the clues provided by Gu Chen, he quickly deduced that the perpetrator might be a woman.

However, Wang Xiaoliu's words made him disheartened, and the breakthrough he had finally found was shattered again.