Qin Yong suddenly felt that his brain was a little insufficient.
The murder case here has not been completely closed yet. Everyone is busy fixing evidence, improving the chain of solving the case, and writing a closing report.
Considering that Lu Chuan had made great contributions to this case and discovered important clues, he was given a day off in the morning.
As a result, just a few hours later, the suspect in a robbery and wounding case last year was arrested? !
"Let Lu Chuan come back immediately... No, arrange a car and go to the Huaguang Street Police Station!"
The murder case was not concluded in a moment, the murderer had given full account, the murder weapon and the crime scene had been identified, and the rest was all procedural work.
Qin Yong can free his hands.
3:18 p.m.
The interrogation room at Huaguang Street Police Station.
Huang Jianmin and another senior police officer from the police station are interrogating Zhang Yan.
Although the man was captured by Lu Chuan and Yang Lin, one of them was a field investigator and the other was a film police officer who had just been on duty for half a month. It was better not to do interrogation work without contact.
"I...I deliberately wore a pair of shoes that my father left behind before he passed away..."
"Comrade police officer, I really didn't mean to hurt her. My mother is paralyzed and my daughter has to pay for school... I really had no choice that day... Wuwuwu..."
"I originally wanted to surrender...but if I go, no one will care about my children and mother..."
When Qin Yong arrived, the interrogation was over.
Zhang Yan has already pressed his fingerprint on the interrogation record.
"Why is it a woman?"
When Qin Yong came to the Huaguang Street Police Station, this was the first thing he asked.
At that time, based on the footprint analysis, it was determined that the other party was a man. How come the suspect turned into a woman now?
"She was wearing her father's shoes and several pairs of socks when she committed the crime."
Without Lu Chuan having to say anything, Director Huang Jianmin told the truth: "Team Qin, what we have cracked this time is a backlog of cases. You have to think more about the extra points in our office's assessment this year."
"Don't worry, I won't miss you."
The handover procedures were quickly completed, and Qin Yong and his party left directly.
"Xiao Lu, you take my car, and Lao Liu, come too."
Qin Yong was surprised and happy when he stopped Lu Chuan, who was about to take the escort car.
Lu Chuan nodded. The detachment's escort vehicle was a modified Iveco and was less comfortable.
Qin Yong's car is naturally the best car in the detachment, a ten-year-old Cruiser.
Lu Chuan sat in the passenger seat, while Liu Guodong and Qin Yong sat in the back seat.
"Xiao Lu..."
Qin Yong trailed off, and Lu Chuan hurriedly turned sideways and said, "Captain Qin, your instructions."
"Don't be nervous, don't be nervous," Qin Yong moved slightly: "Today's case, how did you find...discover the murderer?"
This is what I was asking.
"You let me rest in the morning. I had nothing to do, so I went to the on-site survey warehouse to look at the backlog of files."
"A lot of footprints were collected at the scene of this case. I did some research on footprint analysis when I was in college..."
Lu Chuan briefly talked about the process of analyzing the footprints to determine the suspect's characteristics, and then comparing them with the portraits extracted by nearby surveillance cameras at the time.
"You mean... you determined the suspect's gender, height, age and... X-shaped legs through footprint analysis?"
Lu Chuan nodded: "Well, the calculation is a bit cumbersome, but it's actually not too difficult."
Not too difficult?
Qin Yong and Liu Guoliang looked at each other with shock in their eyes.
Of course the two of them knew about footprint analysis.
It is also known that some experts can accurately analyze the physical characteristics of the owner through footprints.
But only if you are an expert.
What is an expert?
Liu Guodong knew that there were only two people in the province who could be called experts in footprint analysis.
But this obviously does not include Lu Chuan, who has just graduated half a month ago.
There was a brief silence in the carriage.
Qin Yong didn't speak, so Lu Chuan naturally didn't say a word. Half an hour later, the car stopped at the Criminal Investigation Detachment compound.
"Xiao Lu, please take a rest."
Qin Yong's expression can be described as kind.
Naturally, someone from the action team took over Zhang Yan's case, and Lu Chuan could already get off work.
"Ha ha ha ha!"
Listening to the wild laughter coming from Captain Qin's office, the criminal police working in the detachment office whispered: "The murder case has been solved, the boss is happy, can we get off work normally today?"
"Hey, as usual, it's okay for us to take a leave or something in the next few days."
This is also a common practice. After the murder case is solved, all personnel can relax and turn a blind eye when asking for leave, arriving late or leaving early.
"Bureau Wang, I have good news to report to you. The robbery and wounding case last year has been solved!"
Qin Yong visited the office while asking for credit.
Lu Chuan sat on the chair, and Liu Guodong, Yang Sen and Lao Bai sat opposite.
"Master, why do I feel like you are interrogating a prisoner?"
"You want to leave it alone." In the car just now, with Qin Yong in the car, Liu Guodong had some words that were difficult to say: "Have you really done research on footprint analysis?"
"I can't even call it research," the system only rewards elementary footprint analysis skills, followed by intermediate and advanced levels: "It can only be said to be a bit of experience."
Dry!
Liu Guodong and the others almost choked on Lu Chuan's words.
What does it mean to have some experience?
With just one footprint, he solved a backlog of robbery and wounding cases. This is enough to make a TV series.
The point is that at that time, the Haizhou City Criminal Investigation Detachment invited "experts" from the next city to analyze the footprints.
At that time, it was concluded that the suspect was a male, between 1.7 and 1.8 meters tall.
But the suspect is actually a woman, 1.69 meters tall.
Liu Guodong now wants to call the "expert" in the next city and tell him what bullshit analysis you did.
It's no wonder that Liu Guodong is successful. The investigation of all cases, even murder cases, has resource constraints.
For example, for a murder case, the criminal investigation detachment can send hundreds of people to investigate and investigate, but can it send thousands or tens of thousands of people to investigate and investigate?
The same is true for trace identification. If you can't do it yourself, you can only ask others, but others also have their own cases to solve.
At this time, all I can do is say nice things and owe favors.
As a result, the favor was owed, and the analytical conclusion was completely different from reality.
"Your boy has made a meritorious deed again this time. The robbery and wounding case last year was quite special, and it still attracted a certain amount of attention at the time."
Speaking of this, Lu Chuan frowned and looked at Yang Sen: "Brother Yang, when we were interrogated at the Huaguang Street Police Station just now, the conditions in Zhang Yan's family seemed not to be very good. She raised a daughter as a single parent, and her mother was paralyzed."
"She was robbing her to pay for her daughter's tuition."
Yang Sen was slightly stunned, obviously not aware of this situation yet.
"I don't know about this situation. I'm talking about the person who was robbed in particular. The victim's son has uremia, and she got the 800 yuan by selling blood..."
Lu Chuan suddenly felt that his heart was blocked and he couldn't breathe.
Lao Bai shook his head and sighed: "Xiao Lu, you have just started working and have not seen much. Most people commit crimes for a reason. For example, Zhang Minlu killed his father."
"However, hardship is never an excuse for committing a crime."
"The law is the bottom line. Anyone who steps on it will pay a price, otherwise the world will be in chaos."
"Okay, Lao Bai, Xiao Lu is only in his early twenties, keep these big principles to yourself, let's do something practical."
Yang Sen interrupted Bai Wenhai and approached Lu Chuan mysteriously: "Xiao Lu, if I give you another footprint, can you still analyze his physical characteristics?"
"As long as the footprints are clear enough, it shouldn't be a big problem."
