It's easier said than done!

Since he was appointed deputy detachment leader and head of the technical brigade, he has been constantly making applications, calling the city bureau, the provincial department, and even the Ministry of Public Security, either for staffing or for funding. Pen % fun % Pavilion www.biquge.info

From the moment the political commissar of the criminal police detachment helped him submit the application report half an hour ago, Deputy Director Cui realized that he was not just "a drunkard who does not mean to drink", but also "robbed while the fire is burning".

There are not many people who dare to do this, and even fewer people who dare to play with their lives. Deputy Director Cui hesitated for a moment, but finally took out an application report from his bag.

"Chen Ju, the existing equipment of the technical brigade can barely test and analyze the explosive composition of the bomb at the infrastructure construction site of the offshore engineering group from the explosives residue. Due to the explosion accident in Xinyuan Community three years ago, it is estimated that only a little trace evidence can be extracted from the exterior wall of the outdoor unit of the air conditioner, and it is difficult for the existing instruments and equipment to do such a trace test. ”

Before the purchase of DNA testing equipment, there were a few old-fashioned microscopes and some bottles and jars such as test-tube beakers, which were similar to the chemistry laboratories in middle schools, and it was not easy for young men to test and analyze the composition of explosives under such rudimentary conditions.

The technical building is being renovated, and the criminal technology center of the municipal bureau is listed in early March, and some instruments and equipment will be purchased sooner or later.

Chen Ju didn't care, took it and looked at it, put it down and said: "Since it is necessary to handle the case, notify the Police Security Department to arrange a special person to purchase it immediately." There are seven or eight things in total, and Nangang did not go to the East China Sea, and tried to be in place before work today. ”

Seven or eight, these are not small pieces, they are all big pieces!

Deputy Director Cui asked the political commissar of the criminal police detachment, and reminded with a bitter face: "Bureau Chen, the gas chromatograph, mass spectrometer, FID detector, PFPD detector, ECD detector, ultra-high liquid chromatograph spectrophotometer, ray energy spectrometer and electron photographic microscope that Xiao Han needs are not cheap. ”

"Imported?"

"There are not many domestic manufacturers. ”

It is normal for precision instruments to be imported, and DNA testing equipment is not imported, Chen Ju only asked the key point: "How much does it cost?"

"Four or five million. ”

"How much?"

"Four or five million. ”

Deputy Director Cui touched his face, pointed to the first page of the application report and explained: "If there are these instruments and equipment, the technical police can inspect and analyze the paints, coatings and other physical evidence extracted from the scene, and determine the types of paints and coatings according to the combination of resins, pigments and fillers in paints and coatings, so as to comprehensively judge the contact of various carriers coated with paints or coatings, including grease paints, natural resin paints, phenolic paints, alkyd paints and nitro paints, etc.;

It is possible to determine the type of various trace plastics, rubbers and other polymer materials left at the crime scene using modern analysis methods. Including poly-ethylene-ene, polyvinyl chloride-ene, polypropylene, polyphenylethylene-ene, polymethyl methyl propylene acid and other common plastics and a variety of natural rubber and synthetic rubber;

It can inspect and identify the physical evidence such as metal, glass, ceramics, soil, and plants extracted from the scene, and compare and analyze the trace samples left in various cases and the mixture of the above substances in the soil, so as to provide clues for the investigation and evidence for the judgment.

Fibers, leather, oily evidence, explosives, shooting residues...... In short, what is considered useless now can be used as important clues and evidence through micro-testing in the future, which can change the mode of solving the case from the current 'investigation and visit, queuing up, and sitting in the court for interrogation' to 'on-site evidence collection, identification and inquiry, and science and technology to solve the case'. ”

Science and technology to strengthen the police, to put it bluntly, is to burn money!

Taking advantage of the fire to rob, he will really find an opportunity, Deputy Director Tan was deeply impressed by the "Han Strike", and couldn't help but worry about his reckless behavior.

Chen Ju didn't know the young man for a day or two, he knew what kind of person he was, and it was undoubtedly superfluous to know that he was out of public intentions, and Tan Ju's worries, but it was impossible to agree to it when it came to millions of funds.

"Strengthening the police with science and technology and improving the level of criminal science and technology is the goal and the direction of our efforts. ”

Chen Ju picked up the application report again and said slowly: "But Rome was not built in a day, and in the past few years, we raised funds from various sources to build the technical building. At the end of 2001, we purchased millions worth of DNA testing equipment, and the next step was to introduce a fingerprint recognition system and a fingerprint database for ex-convicts, and the DNA database was also included in the agenda.

Our Nangang is not a Jiangcheng, nor is it a wealthy Dongzhou, so it is not easy to do this step now. Lao Cui, can you send the collected physical evidence to a qualified appraisal agency for inspection first. When we have recovered our strength, we will put all this equipment on one by one. ”

"I called and asked, 703 should be able to do such a micro test. But now it is the New Year's Day holiday, and there are not many personnel on duty, and they have to inspect and analyze their physical evidence and go out to the scene, so it is estimated that it is too late. ”

"Bureau Tan, what about the Provincial Department, can the Criminal Technology Center of the Provincial Department do it?"

"Enough. Deputy Director Tan smiled bitterly and shook his head.

At 8:27 a.m., an injured worker failed to resuscitate and stopped breathing.

The 01.01 mega explosion has killed three people and injured eight others, and the impact is so bad that it is not known whether there will be a second or even a third.

Secretary Zhao of the Municipal Party Committee was furious and demanded that the case be solved before the Spring Festival.

As the secretary of the Political and Legal Committee and the director of the Public Security Bureau, Chen Ju was no less stressed than the "old handsome", stared at the application report for a while, and then asked: "Lao Cui, can you call and ask Xiao Han, can you purchase what is urgently needed first?"

"I also called and asked, and he said that these instruments and equipment are matched and indispensable. ”

There is no progress in the investigation work for the time being, and whether the technical department can make new discoveries seems to be beyond words, Chen Ju didn't care so much, and gritted his teeth: "Procurement! This is not the same as the case-handling funds, no matter whether it can play a role in the 01.01 case, at least the equipment is there, and it is a fixed asset." ”

……

The time is urgent, and there is no time to go through the procedure, so call the police security department directly and ask them to contact the instrument and equipment dealer immediately.

During the New Year's Day holiday, government departments have a holiday, and there is no holiday for doing business. If you have money, you don't make a bastard, even if you have a business that is delivered to your door during the holidays, you have to end your vacation and try to make the business happen.

After the matter was explained, Deputy Director Cui reported the second incident about the "Korean attack".

"It's too dangerous, I don't dare agree. But he has a certain point, if it can be extracted, if it is really detected, it can play a vital role in the investigation of the case, and he and Dr. Tian can operate it. Dr. Tian came to help, not even the police, so he could only let him go. ”

The detonator is actually a small bomb, and the explosives in **** are more powerful than T-N-T, but the charge is relatively small.

The detonator is more terrible than the detonator that has not failed, and no one knows when it will explode, and the young man actually plans to extract the exfoliated cells that the suspect may have left behind from the detonator, and then test its DNA typing, pointing out the direction for the investigation of the case.

Crazy, crazy!

Tan Ju finally realized where the confidence of "Han Strike" to take advantage of the fire to rob came from, and in the face of such subordinates who took the initiative to ask for danger in order to solve the case, which leader would be angry with him?

He's only 29 years old, and he doesn't have children yet.

Cui Ju didn't dare to agree easily, and Chen Ju didn't joke about the safety of his subordinates, so he asked solemnly: "Old Cui, if the detonator suddenly explodes, how powerful is it?"

"I have inquired that detonators are usually tested by the lead plate blasting method, which is to put a detonator upright on a lead plate with a diameter of 40 mm and a thickness of 5 mm. After detonation, observe that the aperture of the detonator tube to blast the lead plate should be larger than the outer diameter of the detonator. If you want to accurately determine the power of the detonator, you need to use the lead volume method......"

Cui Ju took a deep breath and added: "Last year, there was a detonator explosion in Donggang, and a farmer working in a quarry in Jiangnan smuggled an unused detonator home. Driven by intense curiosity, his son was going to try his might. Plug the wire into the power jack with your hand, and as a result, there was a loud bang, and four fingers were blown up on the spot, and the face and **** were blown into a blur of flesh and blood. ”

To do an experiment, wearing a thick EOD suit is difficult to move, and can only wear a thin layer of latex gloves, he is playing with his life!

Chen Ju was silent for a long time, suddenly picked up his mobile phone, and dialed Han Bo in person.

"Xiao Han, I'm Chen Zhaoping, tell me the truth, how sure are you that you can test the DNA of the suspect that may exist on the detonator?"

The on-site investigation went smoothly, and the cement slurry used to repair the wall was not strong with the original crater, and it fell off one after another after being lightly tapped.

The director called in person, Han Bo hurriedly put down his work, returned to the business car, and pretended to report lightly: "Report to the bureau, the suspect's bomb production level is not high, it does not mean that he does not know its danger, the whole production process must be careful, I think it is unlikely that he will be able to operate it with gloves."

People sweat when they are nervous, even if they are not very nervous, there are fine beads of sweat and oil on their fingers, which is how fingerprints from crime scenes are left. There is no DNA in sweat, but as the skin of the fingers metabolizes, many cells fall off before they are completely keratinized, and these cells are transferred to the physical evidence with the sweat, forming a DNA sample, which we call contact DNA.

The structure of DNA, especially the hydrogen bonds between bases, is expected to be stable and degrade very slowly. As long as there are cells left by the suspect on the surface of the detonator, as long as there is enough patience to use different methods to extract repeatedly, the probability of detecting its DNA typing is still relatively high. ”

"How tall?"

“20%。 ”

"That's high?"

"Chen Ju, apart from investigating the scene of the accident three years ago, conducting a trace examination of the physical evidence collected, to see if it was a man-made explosion, and to see if the two explosions can be combined, I really can't think of a better way. You let me try, I'll be careful. (To be continued.) )