As if seeing Tang Tian's doubts, Jia Zuozhen explained proudly: "Are you thinking, how can I be sure that this person can take us into the back kitchen and accurately say his surname?"

"Actually, it's very simple, there is a very faint smell of oil smoke on his body, this taste can first determine that he is the chef of the Chinese food department, and he is the kind that has been in charge for a long time!"

Jia Zuozhen saw that Tang Tian was listening carefully, and explained even harder: "Moreover, this person's brows are tightly locked, his face is gloomy, and when other people pass by him, they are deliberately keeping their distance, which shows that he is depressed, and his temper is not very good, and he does not have a good relationship with other chefs." Once you praise this kind of person for being comfortable, give him some benefits, and it won't be difficult for him to do anything!"

Tang Tian was speechless for a moment, this old guy is too chicken thief! But these are all worth learning from himself, all along, he is most proud of the observation and excavation of details and traces, but now compared with Jia Zuozhen, the old Jianghu, Tang Tian feels that he is a rookie completely!

"Oh, don't feel that you are too a failure, this kind of work, you who graduated from a regular school, will definitely not be as good as those of us who run the rivers and lakes! I think the Xiang team was cheated by me back then!" Jia Zuozhen smiled and winked at Tang Tian, how could there be the slightest shadow of a police officer of the Special Investigation Bureau?

When the two returned to the hotel, it was already half past two at night, Xiang Yu was still staring at the monitoring screen, and Qu Liuqiao was sent to sleep by him.

"Are you back, how is the investigation?" Xiang Yu didn't turn his head, and kept his eyes on the monitoring screen.

In order to save time, Tang Tian did not explain how to enter the back kitchen, but just told what he found in the back kitchen one by one: "...... Xiang team, I suggest immediately monitor the back kitchen of the hotel, find the vehicle that delivers the water and then follow the vine, there must be a problem with this bottled water company, their buckets are specially made, and they have been specially treated for leakage!"

"In this way, you are tired enough to choke today, you have a good sleep, tomorrow morning you two will be responsible for keeping an eye on the back kitchen, and you must find the company that provides pure water to the back kitchen! How the next investigation will be carried out depends on your results tomorrow!" Xiang Yu did not make too many arrangements, after all, the current situation is not clear, there are many pure water companies in the vicinity, and the special investigation bureau, which has few people, does not have the confidence to spread the net and comprehensively control it.

There was nothing to say all night, Tang Tian and Jia Zuozhen got up early the next morning, left the hotel one after the other, and after finding a suitable location in the small park opposite the hotel, Tang Tian stood diagonally on the side of the road with the appearance of others, and Jia Zuozhen mixed into the ranks of the old people who practiced in the morning.

There are still four and a half buckets of pure water I saw in the back kitchen last night, and according to the number of guests in the hotel, those pure water will be used up by noon at the latest, which means that this morning will definitely be able to wait for the vehicle transporting pure water to enter!

In fact, Tang Tian and the others had only waited for less than two hours, and an electric tricycle pulling six buckets of special purified water appeared in their field of vision.

This tricycle is not much different from the transport vehicles of other pure water companies, and there are advertisements for Liquan Water Purification Company pasted on it, what to buy five barrels and get two barrels free, pay a deposit and you can try it for free, and so on.

"You go back to the hotel first, let the Xiang team check this Liquan Water Purification Company, and I'll follow this tricycle later, and see where he goes!" Tang Tian immediately made arrangements, Jia Zuozhen still has some ability to fool people, but let him keep an eye on it, it will be completely chasing ducks to the shelves.

Jia Zuozhen had a very clear understanding of his expertise and flaws, and he didn't talk nonsense, so he said hello to Tang Tian and left.

After waiting for more than half an hour, the tricycle pulled six empty barrels out of the hotel, and there was a lot of traffic around the road, so the speed of the tricycle was not fast, Tang Tian started the car, separated by three or five cars, and followed the tricycle from a distance.

After following for a while, Tang Tian found that the guy driving the tricycle was not vigilant at all, and he didn't even look back behind him along the way, and went straight to a shop with a Liquan water purification brand.

Tang Tian's shop drove in front of it, drove on the viaduct and went around a big circle, making sure that there was no tail behind him, and then drove back to the hotel.

When he returned to the room, Qu Liuqiao had been arranged by Xiang Yu to investigate the registration information of this Liquan Water Purification Company.

"It's confirmed, it's Liquan Water Purification Company!" Tang Tian grabbed the water cup on the table and poured a few sips, "Team Xiang, you arrange an identity for me as soon as possible, I want to contact this company!"

Xiang Yu nodded, before figuring out whether the company was directly involved or indirectly involved in the case, it was the safest way to contact him as a purchaser.

"I'll arrange for you now, I'll probably be able to get your identity information in the afternoon, Lu An will arrive in China today, according to the characteristics of the midnight murder bell serial case, he will receive a midnight call within these two days, that is to say, your investigation of the pure water company is only three days at most! No matter what step the investigation takes after three days, you must focus on Lu An's case!"

Xiang Yu had to arrange it like this, no matter what, the midnight murder serial murder case is the focus at present!

Tang Tian sighed in his heart, the manpower of the Special Investigation Bureau is indeed a little too small, once the two cases are carried out simultaneously, it will be very busy, it is completely to tear down the east wall and make up the west wall!

There were only three days to give himself time to investigate, so Tang Tian decided not to wait for the identity information to be confirmed in the hotel's staff files, and first ventured to Liquan Water Purification Company to contact him.

After receiving the information from Xiang Yu that was to be sent to the hotel for the record, Tang Tian read it carefully, wrote down the name and address of the hotel he was attached to in this information, and drove out of the hotel in a hurry.

When Tang Tian arrived at Liquan Water Purification Company, there happened to be a truck parked in front of the store to unload, but this truck was loaded with ordinary packaging of pure water.

"Boss, if you order a large amount of pure water for a long time, what is the lowest price you can give?" Tang Tian didn't look at it much, pushed open the door and asked a person who looked like a boss.

The man was holding a small notebook to record something, and when he heard Tang Tian's voice, he looked up and looked over, with a habitual smile on his face: "Long-term order?

"I said that the amount is large, it must be ordered for the company!" Tang Tian's gaze swept over the messy empty buckets in the room, "But what we want is not this ordinary pure water!"

"Oh?" The boss was stunned for a moment, and quickly regained his composure, but the smile on his face gradually converged, and he looked at Tang Tian seriously.

"Let me introduce myself, I am the buyer of Gangbin Hotel, we found that the traffic has decreased a lot recently, through market research, we found that many customers have reported that the hotel's restaurants are not in good taste, and they are full of praise for several nearby hotel restaurants, so we hope to be able to order for a long time, like the kind of pure water used in the back kitchen of Lishui Hotel!"

Tang Tian didn't ink, and immediately revealed his disguised identity, this kind of commercial cooperation does not need to be hidden, if it dodges, it will arouse the suspicion of this water purification company.

"How do you know that we provide the purified water from those hotels?" the boss asked with a gloomy face, still a little hesitant.

Tang Tian showed a chuckle: "We naturally have our own investigation channels, boss, our hotel is very sincere, we know that this kind of pure water that can be called the taste of the divine water is expensive, boss, you just need to quote!"

The boss pondered slightly, and finally didn't give a definite answer, but just asked Tang Tian to leave a business card, saying that he couldn't be the master himself, and he needed to ask the company's senior management for instructions.

After leaving the store, Tang Tian did not return to the hotel, first called Xiang Yu, and made sure that his disguised identity had been set up at the Gangbin Hotel, and the joining time was four months ago, so he was relieved to find a place to solve the lunch problem.

Just as Tang Tian was eating, Lu An arrived at the Lishui Hotel, accompanied by a secretary and three bodyguards.

"Hello Mr. Lu, all the staff of Lishui Hotel, welcome to check in!" The general manager of Lishui Hotel eagerly opened the car door for Lu An.

Lu An walked into the door of the hotel accompanied by the general manager, his face was slightly tired, but he did not directly live in the booked room 1702, but said to the general manager: "Change my room to 1801, and hand over the room card to my secretary!"

"Okay, okay, you wait a minute!" For Lu An's request, the general manager naturally did not dare to hesitate, and immediately asked the front desk to swipe out a new room card and hand it to Lu An, and specially arranged for the restaurant to send a sumptuous lunch to Suite 1801 half an hour later.

Xiang Yu learned that it was already half past one in the afternoon when Lu An temporarily changed the room, and it was Wang Wen from the criminal police team who called to inform him, which made Xiang Yu very uncomfortable, and he even felt that Wang Wen called just to see his jokes.

In fact, this matter is really a coincidence, at the same time that the Special Investigation Bureau is eyeing Lu An, the Municipal Criminal Police Team is also conducting a thorough investigation of Lu An.

According to information from neighboring provinces, Lu An's Anfeng Logistics Company is suspected of being involved in a number of smuggling cases, including expensive luxury goods and a wide variety of electronic products. However, because they did not have specific evidence of the crime, their counterparts in neighboring provinces have never been able to take action against Anfeng Logistics Company, because the registered place and headquarters of Anfeng Logistics Company are in Angang City, so they sent an application for assistance.

After the approval of the superiors, the case fell on Wang Wen. When investigating Lu An's identity, Wang Wen noticed that the Special Investigation Bureau had already investigated Lu An first, although he didn't know what happened to Lu An involved in the case that the Special Investigation Bureau was responsible for, but he thought that this was an opportunity to repair the relationship with Master!