Tang Ze's mind flashed with the cooking oil on the soles of the deceased's shoes, and he couldn't help but narrow his eyes. "Where is the nearest Happy Hour restaurant? We'll meet there."
After Nanatsuki Koshimizu reported a location, Karasawa also asked the driver to take him to the same restaurant.
After arriving at the restaurant kitchen, Tang Ze saw many familiar faces busy at work.
Samples were taken from every food, including seasonings and all of them were collected.
Of course, if you want to confirm which food is the culprit of this food poisoning, you need to wait patiently for the test results to come out.
At this time, the huge scientific team of Kesouyan came in handy. Even though it involved various samples from 15 restaurants, the person in charge still assured Tang Ze that the results would be out within today.
Tang Ze asked him to inform him immediately once there was any result, and left the scientific research staff who had been driving to help here.
As for Karasawa, he took Nanatsuki Koshimizu to the Maruyama Food Wholesale Company where the deceased Akiko Hiemori worked.
After stating their identities and purpose, the two men went directly to visit Akiko Higashimori's direct supervisor and asked him for any information about the deceased.
If she is a person with bad character, then she will naturally continue to investigate the people she has conflicts with.
"Ms. Akiko is a very conscientious employee."
But unlike what Tang Ze and others thought, the gray-haired Director Kawano directly denied it after the two raised such questions.
"Then could you take us to see Miss Akiko's desk?" asked Nanatsuki Koshimizu.
This is also a normal part of the criminal investigation. Upon hearing this, Director Kawano stood up and took the two of them to the desk of Higashimori Akiko.
"This is where she works. Just look at the books on her desk and you'll know she's a serious worker and a studious person. She's a good girl."
Tang Ze looked around and found that other people's offices were deserted, with only some personal belongings.
The deceased's desk was piled with a large number of books, and looked like a high school student's desk.
Tang Ze glanced at the books the other person was reading and found that they were all food-related books.
"But I remember that Miss Bijiangsen's position in the company should be sales."
Tang Ze clearly remembered the position on his work permit. He looked at Director Kawano and asked, "But these books seem to contain the knowledge of professional nutritionists."
"Yes, she even obtained a qualification certificate so that she can provide menu plans for customers." Director Kawano's face was full of regret when he said this. "Such a hard-working child, how could she..."
"Please accept my condolences."
After giving her a soothing remark, Nanatsuki Koshimizu asked, "Do you know where she went between 8 and 10 last night? She showed no signs of returning home."
This was not just a casual remark made by the two for the sake of asking questions, but was based on evidence.
When Akiko Bijiangsen's body was dumped, she was still wearing the suit uniform she wore at work. They confirmed this when they saw the female employees of the company.
If Hiei Sen Akiko had returned home and then gone out again for personal matters and was killed, there was a high probability that she would have changed into casual clothes.
Since she was wearing a uniform when she died, it means that she most likely did not go home.
"I remember she got off work around seven o'clock," Director Kawano recalled.
"Then I wonder if she visited a client on her way home from get off work?" Tang Ze asked.
"I'm not sure about that."
Director Kawano shook his head and said that he didn't know the other party's subsequent whereabouts. The two of them asked around in the office, but no one knew where Miss Bijiangsen went after get off work.
Although no more important information was found, during the investigation, Tang Ze received a call from the Keshen Research Team responsible for homicide evidence, saying that a certain brand of cooking oil and a certain resin were detected on the deceased's shoes.
We are investigating brands of cooking oil, and of course we have to compare them with the cooking oil samples brought by Happy Restaurant.
But resin was information that Tang Ze had not expected, and he couldn't figure out how the soles of the deceased's shoes got stained with resin.
It’s not because the environment in which the branches come into contact is too harsh, but because it’s too common.
For example, plastics, coatings, etc. all contain resin components, so they cannot be checked at all.
"Where are we going now?" Nanatsuki Koshimizu asked while fastening her seat belt as she sat in the passenger seat.
"Do you have the contact information for that criminal named Mizukura from the Living Environment Class?"
Tang Ze asked, "Let's synchronize the news about the food poisoning and then decide where to go next."
"The other party left in a hurry at that time." Nanatsuki Koshimizu shook her head.
"Then I'll ask Saito. The case over there will definitely require the help of the Science and Research Institute, and there will definitely be communication between the responsible persons."
After taking out his phone and asking, Tang Ze asked Nanatsuki Koshimizu to write down a number and then gestured for her to dial it.
"Hello, who is this?"
A man's voice came from the phone. Tang Ze picked up the phone and introduced himself.
"So it's Inspector Karasawa." Detective Mizukura sounded very polite over the phone. "Is this a food poisoning case?"
"It's like this, we suspect that this case may be related to a murder case on Mitaka Forest Road today, so we want to ask about the progress of the case on your side." Tang Ze explained.
"So that's how it is."
Detective Mizukura tidied his words and said, "We visited several Happy Hour chain restaurants and found that several of their stores had not received regular inspections from the health center."
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