Chapter 74 Determining the Source

On the way back, Wang Zhong became silent.

The streets were flooded, with few pedestrians and vehicles, but Wang Zhong stared out the window with dull eyes.

When they were almost at the criminal police team, Wang Zhong asked, "Are we too useless?"

Jiang Yuan frowned tactically: "We?"

"I mean, we are technical people. You see, if the conditions are not met, we can't solve the case. Just say, it's just raining heavily. The surveillance can't be seen by the surveillance, the fingerprints can't be scanned, the footprints can't be matched..." Wang Zhong muttered, "I know that many major unsolved cases were not solved because of the heavy rain. But when I really encountered such a case, I felt very uncomfortable."

Jiang Yuan said "Oh".

"Don't you understand?" Wang Zhong was a little disappointed. We are all technicians, so we should empathize.

Jiang Yuan drove the car, looking forward, and said: "Understanding is understanding, but there is a sense of powerlessness, right?"

"Yes! Powerlessness, this is a good summary, that's it, so you still understand..."

"But today's case has not reached the level of powerlessness." Jiang Yuan interrupted Wang Zhong's wailing.

Wang Zhong sat up straight and asked: "No? Such heavy rain..."

"It's not raining in the store." Jiang Yuan glanced at Wang Zhong and said: "Isn't the focus of our on-site investigation inside the store?"

Wang Zhong was shocked when he heard it. Yes, the focus of today's investigation is the store.

Wang Zhong hurriedly asked: "Did you scan fingerprints or something else?"

"I don't think there are fingerprints. Let's go back and see." Jiang Yuan had several plans in mind, but he didn't say them out.

Some things are too tiring to talk about in air-to-air, and if they are not done well, they will enter the debate stage. It's better to do it first.

Wang Zhong seemed more active. After parking the car with Jiang Yuan, he chased Jiang Yuan to the office.

When they were almost at the office building, Jiang Yuan turned a corner and entered the camp of the police dog squadron.

Wang Zhong was surprised: "Do you need a dog?"

"Have you had lunch?" Jiang Yuan asked Wang Zhong.

"Oh...oh, I forgot." Wang Zhong touched his head embarrassedly and said, "Then let's eat first. Do you want fried rice or buy it from the canteen?"

Jiang Yuan said, "Make it yourself and eat with the dog. I promised Da Zhuang before."

Wang Zhong's eyelids wrinkled when he heard it: "I only understood the first sentence of your words."

As he was talking, Da Zhuang was already wearing a chain and rushed over.

The sound of the iron chain being pulled instantly exploded in the ears of the police, which was even more sensitive than the sound of gunfire. Wang Zhong couldn't help but step back, and his hands were on his chest.

Da Zhuang woofed, and without even looking at Wang Zhong, he wagged his tail wildly at Jiang Yuan. The dog's face was full of cute, resentful, and ecstatic expressions.

"The vegetables and meat are ready." Li Li also heard the noise and rushed out of the kitchen. She looked at Wang Zhong and asked, "One more?"

"Make some noodles. When cooking, make a little more juice. It's also delicious. Master and I can't eat too much." Jiang Yuan mastered the LV5 dog meal skills and could make it very flexibly.

Wang Zhong was a little embarrassed and smiled, "It's the same if I make some instant noodles."

"No need." Jiang Yuan waved his hand. When the LV5 dog meal was ready, Wang Zhong would eat instant noodles next to him. Wouldn't it be worse than Da Zhuang?

Don't let him snatch Da Zhuang's meal and affect the growth and development of other police dogs.

"Then I'll help." Wang Zhong expressed his active willingness again.

At this time, Da Zhuang saw that Wang Zhong was about to touch the ingredients, and couldn't wait to "bark" out, and the dog chain was immediately pulled with a rattling sound.

"Da Zhuang, sit down." Li Li shouted.

Da Zhuang sat at the door with a wronged look, staring at Wang Zhong with an expression that said, "If you dare to move again, you'll see."

Wang Zhong swallowed his saliva and quickly stood beside Li Li.

Li Li's expression was calm, her eyebrows drooped like a Rottweiler, and she patted Wang Zhong's shoulder skillfully, saying, "Stop it, when Jiang Yuan was cooking, Da Zhuang didn't let me interfere. The dog has grown up and has his own ideas."

Wang Zhong laughed twice.

"Get me a mobile phone holder." On the other side, Jiang Yuan used his mobile phone to play the surveillance video of Xinfa Tobacco Hotel and put it in front of the stove to play it in a loop.

Watching the video on the mobile phone is not very clear, but Jiang Yuan doesn't care much.

He can enhance the picture or a certain point in the video by reducing noise, collaborative filtering, etc.

However, for Jiang Yuan now, what is important is not the technology, but where it is applied.

In the video, the robber holds a sharp knife and wraps himself tightly with a hoodie, revealing only a pair of eyes. Watching from the beginning to the end, even if he was tired and panting, he had no intention of opening it.

For this kind of thing, noise reduction and collaborative filtering are obviously useless.

If you want to see the face, you need perspective skills, which are obviously not allowed!

Jiang Yuan wanted to use this method to remind himself where the enhancement is really needed.

The fat is stir-fried, the beef is boiled, and the seafood is steamed...

Jiang Yuan manipulated the ingredients step by step, and Li Li and Da Zhuang drooled.

At the same time, in his mind, he has been thinking about all aspects of the video and sorting out the questions he thought of.

He has many choices, not that he can't find clues.

Many of the information in the video can be explored. For example, the hoodie is likely to be purchased online. If the source can be confirmed, it is possible to find the suspect's information.

The suspect's shoes have also been exposed many times, and the sacks used to transport cigarettes back and forth can also be a direction of investigation. Of course, Jiang Yuan pays the most attention to the weapon in the suspect's hand!

A short knife half the length of his arm.

It can be seen that the blade was opened by himself. Even so, two knives of this length are not easy to buy casually.

However, Jiang Yuan is not sure whether the source can be determined. The details depend on the picture.

The meal is ready. Jiang Yuan scoops out Da Zhuang's portion first and subconsciously glances at Da Zhuang.

Da Zhuang immediately pouted, as if he wanted to smile to Jiang Yuan and look smarter than others.