Ten minutes later, Ouyang De entered the police department lounge. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

"Li Bi, this is the transcript of thirty-seven passengers and flight attendants!" Ouyang De held a stack of A4 papers in his hand.

Li Bi stood at the door, hurriedly stepped forward to take the information, he seemed very anxious, sat down on the stool next to him, and began to read the information seriously.

"Li Bi, this is the information you want!" Lin Gang picked up the materials he had just printed out and walked towards Li Pen. "The silt and river water contain a lot of thiocyanide ions, as well as iron ions that exceed the standard."

"This is the reason why the river water turns red, the ferric thiocyanate complex is black-red crystals, and the iron is blood-red when dissolved in water." Li Bi raised his head.

Standing up and taking the information, Li Bi muttered while looking at it, "Where will iron sulfate come from?" ”

"Ferric thiocyanate is a black-red complex, dissolved in water and dark red, and its blood-red characteristics are often used in film and television works to imitate blood and achieve the desired shooting effect." Reading this, he paused.

"Imitate blood to achieve the effect ......of shooting," he repeated, "someone uses ferric thiocyanate to imitate blood, and before the car leaves, the ferric thiocyanate complex crystals are placed on the roof of the car, and with the heavy rain, the crystals are dissolved, and they are left on the glass along the car, creating a terrifying atmosphere!" ”

"Wonderful, wonderful!" Lin Gang looked at Li Bi with wide eyes.

"The staff at the station are the most suspicious because they have more opportunities to commit crimes." Li Bi dragged his cheeks with his right hand.

"The conductor is dead, I see! The murderer is the driver? Lin Gang jumped up from his seat, very excited.

"It's just speculation, and there are still a lot of doubts!" Li Bi looked back at Lin Gang.

"Wait, in the morning you guessed that the murderer had a high level of education, and it was probably a staff member at the station. You've long guessed the 'imitation of blood'? ”

"Yes, but the conductor and driver have a primary school diploma. I suspect that the murderer is someone else, or ......" Li Bi fell into deep thought again.

"The killer's finger told the station staff to put ferric thiocyanate crystals on the roof of the train before it was dispatched......" After a two-second pause, Li said.

"Well...... Then why are you sure that the murderer has a high level of education? ”

"I also have a preliminary guess that ferric thiocyanide crystals are generally used in laboratories to identify the existence of iron, and rarely appear on the market, and they are only solvents used in film and television production. The killer not only knows it well, but also uses it with ease. ”

"But none of these people are engaged in laboratory-related work?" Lin Gang flipped through the information of the thirty-seven passengers and flight attendants.

"It seems that this murder was carefully planned by the murderer!" Li Bi held his cheeks.

"Laboratory? On that day, the bus departed from N County, and there is a famous iron and steel chemical factory near N County, what is it called...... The original ecological iron and steel chemical plant, I saw a news report on the Internet a few days ago, the factory recently discovered a method of refining iron ore, and now is setting up a special testing laboratory. Lin Gang tried to recall.

"The original ecological iron and steel chemical plant! Lin Gang, you are amazing, quickly check the detailed address of this factory! Li Bi said excitedly.

"Mr. Li Bi, is there any progress on the case? Need police involvement? Ouyang De strode into the lounge, frowning, this case is extremely weird, and it has received widespread attention from the outside world, he must give an explanation to his superiors as soon as possible.

"Things are progressing, don't startle the snake for the time being, I'll go to N County tomorrow, I need a policeman to accompany me. Give me two days and I'll try to solve the case as soon as possible! ”

"Found it! The original ecological iron and steel chemical plant is located at No. 135, East Street, N County. “

10:30 a.m. at 135 East Street, N County

"I'm a cop!" Wu Fan took out his ID and said to Yang Zhiming, the person in charge of the original ecological chemical plant, "We are investigating the 'bloody car homicide case' that happened yesterday." Please cooperate with us! ”

"Okay, officer, what do you command?" Yang Zhiming had heard about the 'bloody car murder incident' for a long time, and it was expected that the car was sent from a station near the chemical plant, and the police would come.

"Are there any missing items in your factory?" Li Bi, who was standing behind Wu Fan, spoke, he changed into a handsome suit, holding a briefcase in one hand and inserting it in his suit pants with the other.

"That's not true, but one thing is very strange, the waste water we use to test iron was bought by a young man, and the XXX is still my reception." Yang Zhiming struggled to recall what had happened a few days ago.

"Young people? Look at the young man in these videos. Li Bi took out his mobile phone from his pocket, and before he came to the chemical plant, he went to Ningzhou Station and copied a video of the station's surveillance that day.

Yang Zhiming took the mobile phone, and the crowd of people coming and going in the video entered and came out from the station......

"Yes, it's this young man!" Yang Zhiming pointed to the familiar figure.

"Is that him?" Li Bi looked at the person in the video. "Was there anyone else there besides you that day?"

"Nope." Yang Zhiming did not hesitate, he was the only one on duty at noon that day.

"Okay, Wu Fan, our investigation is over, if nothing else, we can catch the murderer tonight" Li Bi looked back at the sturdy man who was looking left and right in front of him.

Wu Fan gasped, approached Li Bi, looked at Li Bi, and looked at Li Bi, "According to the on-site management regulations, we should check all suspicious items nearby, find, fix, and extract traces, physical evidence and other information related to the crime, analyze the crime process, determine the line of defense and scope of the investigation, and provide clues and evidence for the investigation." It's not appropriate for you to make such a hasty judgment, right? ”

"No need, it's useless to do too many superfluous things, you will call Director Ouyang later, and just say......" Li Bi did not also take a step forward and underestimated in front of Wu Fan'er.

"You! Li Bi, our police department is also very busy, don't come to us next time these little things, this more than four hours of driving just to ask a few words. Wu Fan was transferred by Ouyang De to follow this folk detective to N County, he was already very unconvinced, he was a policeman who had served the people for three years, but he had to obey the hairy boy who had just graduated from the police academy.

"No, Wu Fan, you have an important mission here, protect Yang Zhiming!" The corners of Li Bi's mouth rose slightly.

"Officer, am I in danger of my life? I....... I haven't offended anyone, have I? Yang Zhiming frowned, his forehead began to sweat, and he subconsciously grabbed Li Bi's arm.

"Rest assured, we will guarantee your safety, provided you cooperate with us." Li Bi patted the hands that were holding him.

"Good...... Okay, officer, just give me the order. Yang Zhiming finally breathed a sigh of relief when he heard Li Bi say this.

Li Bi turned around, patted Wu Fan's shoulder, the corners of his mouth rose slightly, leaned in front of Wu Fan's ear, and whispered: "Officer, you still have an important task, that is, let me also get clean and be a police officer." ”