Detectives of Detective World

The investigations of both parties have made progress at the same time, which should be a gratifying thing.

But the double progress did not bring double the excitement, but instead endless emptiness.

Because both the sodium carbonate found by Karasawa and the alibi about Yamamura Kage found by Yunaga Criminal Investigation pointed to a criminal with professional knowledge.

It is equivalent to saying that when Karasawa interrogated Yamamura Movie Queen, he judged that the other party was telling the truth and was not a prisoner. This inference was confirmed.

Although this guy is a potential prisoner, he is not a prisoner.

Of course, although you cannot arrest the other party because he has dangerous ideas, you still need to follow up when necessary.

After exchanging information with the other party, Tang Ze reminded Gong Chang from the police department to send someone to pay more attention to the other party, and then hung up the phone.

"What are we going to do next?"

Seeing Karasawa finish the phone call, Takagi said with some distress: "Although we know that the fire point was caused by a substance containing sodium carbonate, there is a high possibility that the suspect is also a professional.

But there are too many qualified candidates, and we simply have no way of starting now. "

"The suspects can be eliminated gradually. For now, let's start with channels."

Tangze thought for a while and said: "After all, even if the fire is caused by sodium carbonate, all the substances in it cannot be the same.

If we can find the same fire objects as the collected samples, then the channel will be determined, which should be able to narrow down the scope to a certain extent. "

"Sodium carbonate is not something that is easy to obtain, right?" Takagi suddenly said after hearing this: "It is indeed a good way to start from this aspect."

"In fact, it is very simple for professionals. As long as there is a certain acid and glycerin, nitroglycerin can be produced."

Karasawa said: "For example, 50% of the ingredients in enemas are glycerin, which can be said to be easily available.

We will go to the drugstore later, buy all the enemas on the market, and then compare them with the sodium carbonate we have after experiments.

As for acid, which is not so easy to obtain, it seems that it is what the prisoners have on hand. We can just use several common acids instead. "

"So, you still need to trouble Mr. Saito?"

Hearing this, Takagi looked at Tang Ze and said, "You just said you would let him rest. Are you already planning to let him take over this huge workload?"

"That's not the case." Tang Ze waved his hand and said, "Just leave such a simple comparison task to your subordinates. Let's go and buy an enema first."

After traveling around Tokyo with the money and buying all the brands of enemas, the two returned to Kesouyan and started squeezing the labor force of their employees.

Fortunately, the operation of Kesouyan is now good, and advanced technology is also providing good logistical services to the Metropolitan Police Department, and personnel are being recruited again and again.

Coupled with the fact that Tang Ze, the immediate boss, personally assigned the task, the efficiency was still very high.

The exhaustive method, combined with the human sea tactic, quickly yielded results, but what was disappointing was that the various combustion residues they tested were completely different from the fire scene.

Although sodium carbonate is indeed produced, other trace impurities are completely different.

These trace impurities are equivalent to a "fingerprint". Only when the same substances are fused and burned will basically the same magazine be obtained.

The absence of this impurity means that the prisoner did not use these things to make nitroglycerin.

"Does that mean it wasn't nitroglycerin that caused the fire?" Takagi said with some disappointment after receiving the results of this large-scale experiment.

"No, the general direction is correct."

Tang Ze shook his head and said: "But we don't know the specific manufacturing materials yet. This is a good thing and a bad thing."

The good thing is that the prisoner used special materials to make nitroglycerin. If it can be found, the prisoner can be directly targeted.

But the bad news is that it's like looking for a needle in a haystack. If you can't find the special materials, there's no point in starting.

Sure enough, even if Karasawa finally brought Hiroshi Saito to think about it, he still didn't realize what special materials the prisoner used to synthesize nitroglycerin.

And this kind of thing should be very common.

For example, chemistry teachers, although it is indeed easy to come into contact with acids that can synthesize nitroglycerin, these things are strictly controlled by the school.

If you don't want to be discovered, you can only use something that is relatively easy to get.

With full of doubts, Tang Ze returned home.

"You're back. My aunt sent crabs from Hokkaido today. Let's have this for dinner."

As soon as he entered the door, Karasawa saw Ayako getting busy. He also put down his work and walked into the kitchen with a smile: "Crabs are really good. I haven't eaten them in a long time."

"I heard from my aunt that they are all freshly caught, refrigerated, and then sent over as a rush." ​​Ayako said with a smile.

"But why am I the last to know about this kind of thing?" Tang Ze glanced at the king crab in the foam refrigerator and said a little speechlessly.

"Prove that I am the one in charge in the family." Ayako said proudly: "You no longer have the right to speak!"

"It's easy to say anything else, but when it comes to the bedroom, the right to speak must be mine."

Karasawa smiled evilly and reached out to hug Ayako, but she was slapped away by the other party with an eye roll: "I think about these things every day, and I haven't eaten yet."

"Okay, let's eat and eat." Tang Ze said with a smile: "I'll go change clothes and come over to help later."

"Then I'll make the miso soup, and I'll leave the crab processing to you." Ayako pointed to the side: "The knives over there are already prepared."

"OK."

Tangze went to the bedroom to change into home pajamas, and then began to dismember the crab.

What Tang Ze’s mother sent was king crab, which is the most plump crab from November to March every year.

Although it is a bit late now, it is still in time for the season.

Tangze first removed the crab's claws one by one, and then he cut them open one by one with scissors. Although it was very troublesome to handle, looking at the crab legs full of crab meat, Tangze became a little more motivated.

Ayako on the side wrapped the crab meat that Karasawa had processed into a coat and processed it.

The king crab roe is not the best among the three major crabs in Hokkaido, but the plump meat of the crab legs is outstanding.

Karasawa is looking forward to making it into tempura.

Of course, Karasawa specially left three sections, split them, grilled them slightly, and spread mayonnaise on them, intending to taste the taste of baked crab legs.

As for the crab roe in the middle, although it is not as good as the other two types of crabs, it cannot be wasted.

Karasawa first cleaned the stomach and gills, and then began to examine the crab roe.

Unfortunately, due to the season, the crab roe was not so full and was almost one-third empty.

Grain rice

Karasawa used the shell of his upper body as a small bowl and poured all the crab roe into it.

Because Ayako had already cleaned the crab shells before Karasawa came back, so there was no need to worry about hygiene issues.

At this point, "one crab and three meals" is settled, but after Karasawa has finished dealing with these two things, Ayako has just started.

After all, both of Karasawa's are grilled, so you can just put them on and wait to eat.

But tempura is a skill, and it is not that easy to fry tempura with just the right temperature.

Of course, Ayako's cooking skills can be said to be perfect, and the tempura was fried to perfection.

But the first thing the two of them ate was crab tempura. After all, the two grilled ones took too long, but they could be eaten right out of the frying pan.

The delicious crab meat and dough bloom in your mouth, and it goes very well with rice.

Then there was the crab meat baked with mayonnaise. Because it was his first time to experiment, he didn’t dare to make more, just to test the taste.

Take out the baking pan, the original crab meat has been covered in golden color.

After biting into the grilled cheese-like shell, the aroma immediately exploded in the mouth, and the rich grilled mayonnaise blended with the crab meat, instantly grabbing their stomachs.

"This is delicious." Ayako's eyes lit up after taking a bite: "Where did you get a good idea?"

"My friend told me." Tangze said perfunctorily. It can't be said that he learned it from watching mukbang in his previous life.

The two of them worked together to clean up a few crab legs. Of course, Tangze ate most of them. Considering his current physical condition, his appetite was actually quite large.

"I'll get the crab roe, and we'll eat crab roe bibimbap."

Karasawa said as he got up and went to the kitchen, but when he came back, he didn't expect to see Ayako gesticulating around with the flowers she brought back yesterday.

"I'm eating, why did you get up?"

Karasawa looked at Ayako who seemed to be choosing a place to visit the flower pot and said in surprise: "Also, what are you doing with that pot of flowers?"

"Eh? Isn't this given to you by your friend?"

Hearing Karasawa's words, Ayako held the flowers with a surprised look on her face: "You got this back after drinking yesterday. I thought your friend gave it to you when you went to a friend's house for dinner."

"Ah, I forgot to mention it in the excitement yesterday." Karasawa patted his forehead and told Ayako what happened yesterday.

"It turns out it was given to Sato Criminal. She gave it to you so you could reject Mr. Samejima."

Ayako looked at the flowers in her hands with a sense of pity: "I raised such beautiful flowers, but it's a pity that they were not given to the owner.

It can be seen that Mr. Samejima is fertilizing and watering the flowers very carefully. "

"etc."

Karasawa stopped what he was doing and suddenly turned his head to look at Ayako: "What did you just say!?"

"Eh?" Ayako subconsciously repeated after seeing Karasawa's words: "I said such a beautiful flower..."

"It's not this sentence." Karasawa interrupted Ayako, "It's the next sentence."

"I said Mr. Samejima is very attentive in fertilizing and watering the flowers." Seeing Karasawa's dazed look, Ayako didn't have any strange look on her face. Instead, she cooperated and repeated her words. Again.

After all, for her, having a husband who is a criminal is like this. Occasionally, she will remind the other person by inadvertent words.

If the guess is correct, the other party will be thanked by the other party later for his meritorious service.

As soon as this thought came to an end, Ayako felt her whole body being hugged.

"Thank you so much, you are my lucky star." Tang Ze kissed Ayako on the cheek: "You have done a great job!"

"As long as I can help you." Ayako looked at Karasawa's excited look and smiled: "As a thank you, please solve the case quickly and take a vacation."

"Okay." Tang Ze just finished nodding, his nose moved slightly and he looked at the crab shell with crab roe on the side, and his expression changed: "Oh no, the crab roe has been roasted."

After hurriedly rescuing the crab roe, Tang Ze tasted it and breathed a sigh of relief.

Fortunately, it was just slightly overcooked and had a slight bitter taste, but it was not scrapped after all.

After eating the rice and adding some seaweed and sesame seeds, Karasawa breathed a sigh of relief.

Fortunately, it is slightly bitter but has a different flavor, which is not bad.

He fed Ayako two mouthfuls with a spoon to give her a taste, and Karasawa wiped the rest away.

After dinner, the two went out to watch an opera, and then returned home leisurely.

Although Karasawa came up with a breakthrough clue through Ayako's inadvertent reminder, Karasawa was not so angry that he even ignored his life and plunged into work.

Moreover, this verification also requires a huge workload, and it will not be done in a hurry.

Early the next morning, Tang Ze did not go to work early. Instead, he rested at home after eating and did not go out until eight o'clock.

And his destination was not the Metropolitan Police Department, but the largest fertilizer store in Tokyo.

Yes, Ayako's words yesterday reminded him of important information, or helped him get out of his misunderstanding.

Glycerin can be easily obtained in enemas, and although pure "acid" is not so easy to obtain, some things come with "acid", which can still achieve the same effect.

Gardening fertilizers are the most common substances that may contain the element "acid".

With a wave of his hand, Tangze bought all the fertilizers on the market and asked people to put the things in the trunk of his bicycle.

Fortunately, although there were a lot of fertilizers, they were all in small packages, and a package of fertilizers could fit in Tang Ze's trunk. Otherwise, he would have had to hire someone to drive a truck to send it to scientific research.

However, when he came to the laboratory department carrying a large amount of fertilizer, he still caused a cry.

After all, the previous workload was enough to devastate them, but they didn't expect to have to do it all over again this time, with an even greater workload.

After all, this time I was mixing fertilizer and enema to see if it matched the crime scene magazine.

Just thinking about that huge combination made everyone's scalp numb.

"Okay, I know the workload is heavy this time, so I'll give you overtime pay."

Tang Ze hugged the pot of flowers and smiled and said: "Thank you for your hard work. Now go to my car and bring up the fertilizer. Buy some food and drink on the way. I'll treat you."

After hearing Tang Ze's double encouragement, the faces of the researchers started to look better.

But thinking about the terrifying workload, everyone still couldn't help but sigh.

After Tangze became the hands-off shopkeeper, he increasingly felt that it was a wise choice for him to promote the establishment of "Kesouyan" at that time.