But you still have to go there yourself.

"In addition, I have learned in detail that once these things need to be purchased online, not only the buyer's identity information needs to be provided, but also the purpose of the purchase needs to be clearly expressed in writing."

Jin Jiajia paused.

"It's all for safety's sake. Of course, if you go to the store to buy it yourself, it might not be so troublesome."

Although Chen Ziyan found it very strange, he still went around the villa himself.

In a market two streets away, there is a store specializing in these gardening supplies.

There is a drug called Dushuqiang for sale, which is specifically targeted at situations where mice are coming in and out of the home.

Chen Ziyan specially bought a pack and took it back to the police station, where he asked people from the forensics department to conduct experiments on mice to confirm that it was indeed this kind of poison.

However, the experimental results came out quickly and did not exceed Chen Ziyan's expectations.

"According to the news from the laboratory, after the poison was administered to the mice in a proportion corresponding to that of humans, it was found that the death of the mice was the same as that of the deceased."

In other words, it can be confirmed that 80% of the cases were caused by the use of this poison.

"You mean someone ran out and bought this thing halfway?"

Jin Jiajia was slightly surprised and looked at Chen Ziyan.

Chen Ziyan nodded and said yes.

Although Jin Jiajia didn't quite understand what Chen Ziyan's logic was, she felt that it was no different from what Chen Ziyan said.

Although Jin Jiajia felt it was a bit hasty, there was news from Zhang Chuge.

"At about 3:00 in the afternoon the day before the incident, someone came to my store to buy a pack of venom. At that time, I thought he was a bit unfamiliar, so I deliberately said a few words, but I didn't expect him.

He’s actually very impatient.”

said the shop owner.

Chen Ziyan noticed that the person sitting on the bamboo lounge chair next to him was his wife.

The two people jointly run this mom-and-pop shop for more than 20 years. The surrounding farmers have always purchased from their own shop.

"Because the people who come to buy things from me are all familiar with each other, and some people even don't come to buy things in person, and just ask me to courier them... But because that young man is really unfamiliar, I just ask

Two sentences."

The shop owner explained it to Zhang Chuge again and again. Chen Ziyan looked around the entire shop but found nothing.

Although the decoration in the store is simple, the items inside are all available.

Especially the kind of poisonous rat poison that is sold is not placed on the shelves outside, but is carefully kept inside. The shopkeeper will only take it out when the customer asks for it.

"Usually these things are accounted for, unlike others... sometimes if something is missing, it's not a big deal, but this thing is poisonous to the human body after all."

The shop owner emphasized it again and again.

But the problem arises here again, because this mom-and-pop shop does not have any monitoring facilities, so it is impossible to know who the person who came to buy on the day is. Everything can only rely on the memory of the shop owner.

Zhang Chuge investigated the situation inside for a while, while Chen Ziyan and Jin Jiajia were squatting at the door.

Especially when he was squatting on the steps, he looked like a beggar on the roadside.

"Do you think what the shopkeeper said is credible?"

Chen Ziyan said fiercely, making Jin Jiajia stunned.

"What do you mean?"

"It's not interesting, I just want to ask you, do you think this is credible?"

"So you are doubting?"

Chen Ziyan nodded carefully.

"First of all, there is no surveillance device in the store, but I noticed that there is a small hole in the wall. If a surveillance camera is installed at the location of this small hole, it will not only be able to capture the people entering and exiting the store, but also the inside of the store.

Their belongings can also be protected together.”

Chen Ziyan moved his lower lip and said.

"That being said, I also noticed that the small hole in the wall was removed very clearly."

Chen Ziyan suddenly frowned.

"It's true, and it looks like it was just dismantled. Even the threaded holes are new and there's no dust on them."

this is very important.

Once there is any dust or powder on this hole, it means that the things originally installed here have been removed for a long time, but the exposed wires and the removed ones may be suspected of being monitoring equipment.

thing.

"And what I find very strange is why such a small store needs to be equipped with a computer?"

When Chen Ziyan said this, his fingers pointed towards the store.

But because the shop owner and his wife were being questioned by Zhang Chuge and Qin Siyu, they would not notice this.

"And judging from the configuration of his computer, it doesn't seem to be bad, and the monitor is also very big..."

But it is obviously impossible for these two couples to use this computer to play games.

"That means there is only one option!"

They nodded to each other, and they understood clearly in their hearts.

If there was originally a surveillance camera installed on the wall, but for some reason, the surveillance camera was recently removed.

Chen Ziyan had doubts in his heart, but he just wrote the matter down in his notebook.

Then he and Jin Jiajia went to the villa area again to conduct a detailed investigation of the crime scene.

Since the murder occurred, the scene has been completely sealed off. Of course, the deceased's parents have also returned from abroad, but at the request of the police, no damage was done to the scene.

"You seem to care about this kind of villa?"

Chen Ziyan looked around and Jin Jiajia said jokingly.

"I'm really concerned about it. After all, this is the scene of a crime."

Frown slightly.

"And he was a little too hasty when he questioned everyone before us."

Jin Jiajia nodded in agreement.

It was indeed too hasty and even some details were not asked clearly.

"The internal structure of each villa here is similar. Of course, it is not ruled out that some people will modify the interior during renovation, but generally they are not much different."

Jin Jiajia introduced it to Chen Ziyan. As a resident of this villa area, she has a strong say in this area.

"The entire villa has a total of three floors, with one basement level removed and two floors above the ground. Some residents will change the basement into a garage, but some residents will keep it. Of course, this depends on everyone's preferences, but
Chapter completed!