Anko Border Checkpoint.

There were a total of 6 police dogs at the checkpoint, four of which were drug detection dogs and two patrol dogs, and the kennels of the six police dogs were originally together, but after the four drug detection dogs fell ill, for the sake of safety, the two patrol dogs were allowed to live in other places.

The kennels at the border checkpoint are very similar to those at the police dog base, but the scale is much smaller, there are only ten kennels in total, and four drug detection dogs live on the west side of the kennel, where the ventilation is better to avoid cross-infection.

"Elder Liu, how are a few sick drug detection dogs doing now?" Lin Fei asked.

"Hey......" Liu Lao sighed, looked at the drug detection dog in the kennel, and said: "It's still the same, low-grade fever, anorexia, photophobia, and sense of smell failure." ”

The four drug detection dogs also heard the movement, some raised their heads, and some barked, but their mental state was not very good, and they looked wilted.

"Captain Sun, can you open the kennel, I want to go in and check it. Lin Fei said.

"No problem. Sun Kaixuan nodded and opened one of the kennels, which was a brown and white Springer Spaniel with two long big ears, which looked very cute.

Seeing Sun Kaixuan coming in, Springer Spaniel raised his head, looking a little listless, and let out a low voice from his mouth: "Whoa......"

Sun Kaixuan touched its head and said, "Romy, are you feeling better?"

"Whew......" Springer Spaniel whimpered, revealing a pitiful look.

Seeing that the Springer Spaniel was very well-behaved, Lin Fei also walked over and said, "Romy, hello, I am a veterinarian, and I am here to treat you." ”

"Wang, human, why do you speak canine language?" Romy's furry face showed a look of shock.

"yes, so if there's anything uncomfortable, you can tell me. Lin Fei said.

"What is a veterinarian?" exclaimed Romy.

"Veterinarians treat dogs. Lin Fei said.

"Hey, can you really cure me?" the Springer Spaniel shouted, feeling very new to Lin Fei, a talking human.

"Of course. Lin Fei stretched out his hand and touched the Springer Spaniel's head.

"Veterinarian Lin, although Romy is very smart, but if you tell it this, it can't understand it. Watching the interaction between one person and one dog, Sun Kaixuan felt very weird.

"Dogs are very intelligent, even if they can't understand human language, they can feel the tone and attitude of humans, and they can also play a role in communication. Lin Fei said.

Sun Kaixuan nodded, Lin Fei said this, it can understand, because he also often deals with drug detection dogs, and knows that drug detection dogs can feel the joys and sorrows of their owners from people's attitudes.

"Romy, what's uncomfortable, can you tell me?" Lin Fei asked.

After hearing Lin Fei's explanation, Sun Kaixuan was no longer entangled in whether Lin Fei and Springer Spaniel could communicate through words.

"I felt so bad in my nose, it felt like it was blocked. Romy screamed, lowered his head and pondered for a moment, and said, "And my head is always dizzy and I want to sleep." ”

"The last time you were on a mission, did you smell anything unusual?" Lin Fei asked.

"Whew, I can't remember exactly, it seems...... It smells weird. Springer Spaniel barked.

"What weird smell?" Lin Fei asked.

"Wang, I can't tell. Springer Spaniel shook his head.

Springer spaniels are more intelligent, but their cognition is limited, and it is difficult to describe the strange taste.

Lin Fei tried several more times, but it didn't work, and then, helping the Springer Spaniel to check its body, he found that its tongue was a little abnormal, faintly glowing with a layer of blue.

After the inspection, Lin Fei stood up and looked thoughtful.

Sun Kaixuan was about to open his mouth to inquire about the diagnosis and treatment, but was stopped by Liu Lao, he felt that Lin Fei's appearance might have found some clues.

After Lin Fei pondered for a long time, he spoke: "Elder Liu, where are the suspicious items found by these drug detection dogs, I want to check them." ”

"Consultant Lin, did you find anything?" asked Sun Kaixuan.

"It's hard to say, I want to see the items that caused the drug detection dogs to get sick first. Lin Fei proposed.

"Considering the danger of the item and the possibility of infecting humans, it has been sealed. Liu Lao said.

"I can't see the source of infection, and I can't be sure what kind of disease these drug detection dogs have. Lin Fei said.

Liu Lao and Sun Kaixuan glanced at each other, and then, Sun Kaixuan said: "Liu Lao, you are a veterinary expert, you can just call the shots in this matter." ”

Liu Lao nodded, looked at Lin Fei on the side, and said, "Consultant Lin, come with me." ”

"Elder Liu, haven't you seen this kind of poisonous substance before?" Lin Fei asked.

"It's like a black residue with no smell, and I've used a variety of chemical reagents to find out what it's in. Liu Lao said.

"In my opinion, it may not be that there is no smell, but we humans can't smell it, otherwise, it is impossible to be found by drug detection dogs. Lin Fei said.

"That's true, but it's not very common, and it's hard to figure it out. Liu Lao shook his head slightly, he spent a lot of thought, but he still had no clue.

Under the leadership of Liu Lao, the two came to a remote room, locked with an iron door outside, after Liu Lao opened the iron door, there was a room of more than ten square meters inside, and there were four gas masks hanging at the door of the house, Liu Lao handed one to Lin Fei, and he also put one on.

Lin Fei wore a gas mask for the first time, and he felt quite fresh.

After putting on the gas mask, Liu Lao walked towards the inner room, this room is also locked door, Liu Lao cautiously opened the door, and walked over lightly, the inside seemed more empty, there was only a rectangular table, there was a box on the table, Liu Lao pointed to the box, and the urn said angrily: "That kind of toxic substance is contained in this box." ”

This type of gas mask is new, with a vibrating membrane on both sides of the mask, which works by transmitting sound by vibration, and when the masked wearer makes a sound, the membrane is vibrated to transmit the sound to other people.

Lin Fei nodded and motioned for Veteran Liu to open the box.

Liu Lao paused for a moment, then took out the key and slowly opened the box, there were several sealed plastic bags inside, and the plastic bags contained some black substances.

Lin Fei picked up the plastic bag and checked the black residue, by checking the Springer Spaniel and the news he got from Liu Lao's mouth, Lin Fei already had some vague guesses, and when he saw these black residues, the guesses in his heart were a little more convinced.

Then, under Liu Lao's surprised gaze, Lin Fei opened the plastic bag and poured the black residue on the table, which suddenly startled Liu Lao.

"Consultant Lin, what are you doing here?" Liu Lao's voice was a little hurried, although he couldn't see his expression, he could feel the other party's nervousness.

"Don't worry, Liu Lao, I want to confirm what kind of substance this black residue is. Lin Fei said with a voice in his urn.

Liu Lao hesitated for a moment, thinking that both of them were wearing gas masks, and there was no danger, so he nodded slightly, and agreed.

Lin Fei took out a lighter from his pocket and tried to ignite the black residue.

Then, a surprising scene appeared, the black residue ignited, emitting a green flame, proving that the composition of this black substance is indeed not simple.

"What the hell is this?" Liu Lao frowned slightly, Rao was well-informed, and he didn't expect this to happen.

And so it was. Lin Fei muttered.

"Consultant Lin, do you know, what is this......" Before Liu Lao's words were finished, an incredible scene appeared, and his two eyes widened, staring straight ahead.

I saw that Lin Fei, who was standing next to him, actually took off his gas mask!