In the criminal investigation detachment, murder is an order.
When a murder occurs, everything must make way for the murder.
There is no time limit for overtime work and all vacations are cancelled. This happens every time.
When Zhang Wen's murder case happened last time, two front-line criminal police officers who were on vacation had just gotten off the plane and bought air tickets to fly back before leaving the airport.
As for air ticket reimbursement...
Don't think about it, the vacation is not a business trip, how can it be reimbursed?
The Criminal Investigation Detachment was very poor. Lu Chuan had heard about it when he first started working, more than once.
And you can see it when you look at those old, toothless cars.
The equipment is old-fashioned, and the detachment building has not been renovated in more than 20 years.
The decoration style made Lu Chuan feel like he was back in his childhood.
The floors in the building creaked when you stepped on them.
This is why the four people using enamel jars in the current survey office are so harmonious.
The environment was the environment of that era.
Except for some laboratories that have been invested and built in recent years with a modern style, others are really old and can be used to make nostalgic movies.
However, the criminal investigation detachment is sometimes really rich.
For example, now, when a murder occurs, it can be said that it is done regardless of the cost.
There is no need to apply for human, material and financial resources, just use them directly and give them what you want.
As long as the case can be solved.
Standing outside the building, the entire criminal investigation detachment building was still brightly lit.
Many people came and went, in and out.
It was past three o'clock in the morning, and it was not as quiet as before.
"Master, it's done."
After yawning, Lu Chuan handed the four reports to Liu Guodong.
This is the advantage of having one's own skills.
It was said that for an appraisal, he could be driven out even if he didn't eat, drink or sleep all night.
In the past, we had to ask the traffic police detachment for help with these things.
"Two cars, an SUV...and a van?"
This is the vehicle information for the four sets of tire marks in the four reports.
Lao Bai and Yang Sen also came over and started reading the report.
The two of them couldn't help much and had just slept on the sofa.
I'm in good spirits now.
In fact, for Lao Bai and Yang Sen, this kind of overtime work without being able to take leave to go home is quite good.
Needless to say, Lao Bai, at this age, various parts are working sometimes and not working, and he can't do much when he goes home.
Yang Sen has been tortured terribly by his wife and son over the past year.
Yang Sen felt that there was nothing more terrifying than a menopausal wife and a son who was about to take the college entrance examination.
Now that I can rely on the murder case to stay in the office and smoke Huazi cigarettes, it's not too cool.
No one wants a murder case, especially a case like Song Kun's.
But from the perspective of whether to go home or not, Lao Yang obviously has his own opinion.
Lu Chuan lit a cigarette for himself. This night, he had already burned out a pack of cigarettes.
No wonder most detectives are heavy smokers.
Most likely I stayed up late.
"Two off-road vehicles," Lu Chuan paused: "Actually, they should be SUV models to be precise. One has a wheelbase of 2550 and the other has a wheelbase of 2560. They are both compact SUVs."
"The tire width is 205mm and the aspect ratio is 60mm. Most SUVs using this type of tire are relatively cheap."
"I don't know much about the model price, so I can only make a general guess."
"And both vehicles are two-wheel drive."
"As for the van, the tires were badly worn, the tread was very shallow, the pressure on the four tires was uneven, and one tire had a different pattern than the others."
"This should be a cargo van, and it is estimated to be quite old."
Lu Chuan pointed to the last report: "This report..."
"I recommend it as a key investigation target."
"Oh why?"
Liu Guodong took out the last appraisal report for car tires and read it carefully.
"Because there are some special tire marks on this car."
"In this set of tire marks, the tire widths of the front and rear wheels are different, which is rare in domestic cars."
In the report, it is recorded that the front tire width of this set of tires is 245mm and the aspect ratio is 45, while the rear tire width is 275mm and the aspect ratio is 40.
There are strict standards for the production and use of tires.
What kind of vehicle and what specifications of tires are used are determined when the vehicle leaves the factory.
Generally, it cannot be changed at will. After the change, the vehicle's control, safety and comfort will be affected.
Moreover, changing the tire specifications and sizes involves modification, which requires filing and approval before you can go on the road.
Lu Chuan went on to introduce: "The aspect ratio of a tire refers to the percentage of the tire's cross-sectional height to its maximum cross-sectional width. Simply put, it is the aspect ratio of the tire."
"High aspect ratio tires have relatively high comfort due to their long sidewalls and strong cushioning capacity, but they have poor road feel and weak lateral resistance when turning."
"Tires with low aspect ratio and large inner diameter have short sidewalls and wide treads, so they have a large ground contact area. The tires can withstand large pressures, are very responsive to the road surface, have strong lateral resistance when turning, and improve vehicle control." Strong sex.”
"This car not only has a small tire aspect ratio and wide tire width, but also has narrow front wheels and wide rear wheels. Generally, only vehicles that pursue ultimate driving control would be designed in this way, and most of them are imported cars."
"As far as I know, among common brands, only BMW and Jaguar have this kind of tire design in mass-produced cars."
"According to the pattern of the tires, it can also be determined that the car is a rear-wheel drive model, which is more conducive to improving the vehicle's handling."
"Under normal circumstances, the probability of such a car appearing in the ravines around Xinjian Village is...not high."
After hearing this, Liu Guodong's eyes lit up.
yes.
In the ravine near Xinjian Village, such a car that pursues ultimate control appears?
"Xiao Luxing, you said you're not familiar with the car model, don't you understand?"
Lao Bai clicked his tongue, with joy on his face.
Since Lu Chuan came to the current investigation office, the current investigation office has played an increasingly important role in solving the case.
Originally, the existing survey had more resources, but now it plays a bigger role, which means it is good for the face.
In any place, there is never a direct relationship between the amount of resources at hand and the size of the role played.
Lu Chuan grinned. He really didn't know much about vehicles.
The reason why he knows a lot about this special model is because he owns such a car.
Due to the different sizes of the tires, the front of the vehicle is lower and the rear is higher, giving the vehicle a very powerful appearance and a full visual effect.
That is a little expensive.
The identification and analysis reports of the four sets of tires were quickly sent to Qin Yong.
Qin Yong, who had been up most of the night, had red eyes.
But the advancement of the case is still effective.
In particular, the footprint analysis done by Lu Chuan delineated the scope of the suspects, which provided a very useful reference for the criminal police on the front line of investigation.
Although there is no substantial progress yet, it is better than blindly trying to figure out the elephant. There is a target range or no target range, not just the difficulty of investigation.
It is also a good incentive for the morale of frontline criminal police officers.
Just like a teahouse or club, only by constantly serving new teas will tea lovers continue to come and experience it.
Just a few black teas, green teas, and oolong teas over and over again, the business will definitely get worse and worse.
This is how people are, curiosity is the original sin of all desires.
Drinking tea and solving crimes are all the same.
The expected difficulty is different between finding someone who doesn't know what kind of person they are in a huge crowd, and finding a man or a woman who has a certain height and weight range.
Qin Yong's eyes glowed green when he saw the tire mark identification report.
Just as Lu Chuan guessed, how could such a car go into the ravine?
It's too remote to fight in a field where no one is watching.
"Somebody come!"
