Chapter 9: Trace Examination

The sun set, and the sunset went down.

The old police dog Blackie, who had been running outside all day, dragged his tired body back to his kennel, quietly waiting for the beef, chicken leg, and vegetable stewed rice tonight.

He is a meritorious dog who has won a second-class merit, has meal subsidies, and has meal subsidies built by the police and the people. The daily meal standard is 75 yuan, and wind and rain cannot stop it.

Hou Lejia patted Blackie's head, also dragged his tired body back to the office of the Criminal Police Team, boiled a pot of water for himself, soaked a bowl of instant noodles, tore a ham sausage, and ate it wolfishly.

Halfway through the meal, the phone rang.

"Hello?" Hou Lejia frowned.

On the other end of the phone, a flat female voice said: "Is this Captain Hou? I am the fingerprint post of the Criminal Police General Team. A fingerprint coordination check in your county has results. I will send the details to you now, please receive it..."

Hou Lejia responded blankly, hung up the phone, and then hurriedly opened the police communication to see the content.

After only two glances, Hou Lejia dropped the instant noodles, stepped out of the door in two or three steps, pointed to the people and said: "Old Ping, pick a few people, catch people."

He has the habit of taking the lead. He was like this when he was a squadron captain, and he was like this when he became a brigade captain.

Old Ping, who was called, stuffed two mouthfuls of noodles into his mouth, shouted for the criminal police of his team to set off, grabbed his coat, and asked while walking: "What case?"

"Last year's 715 robbery case. The coordination check result returned by the province, the person is in the Tuoshan Forest Farm, and there is a punch-in record this morning." Hou Lejia said while walking: "The road there is not easy to walk, drive the pickup truck."

"Okay!" Old Ping responded, and clicked his tongue twice: "This kid is playing dark under the lamp with us. Is this forest farm's fingerprint networked this year or what?"

Now many industrial and mining production enterprises are required to install and network biometric identification systems, typically such as coal mines, and even to the extent of installing iris systems.

Hou Lejia shook his head: "The fingerprints have been online for a long time, and they were only matched today. Catch people first."

Several people ran in small steps downstairs. Old Ping, who had been running for a day, started the pickup truck, breathed a sigh of relief, and asked: "Should we bring Blackie? Maybe it will be useful to go to the forest farm?"

Hou Lejia looked at the kennel direction. Blackie was chewing chicken legs and eating happily, so he hesitated: "Forget it, Blackie is quite tired, let it rest, let's go and see the situation first."

Old Ping rubbed his sore waist, laughed, and twisted the key to drive.

Pickup truck running on the mountain.

People running on the mountain.

Early morning.

The sky was already bright, and the suspect signed the interrogation record.

The twenty-something forest farm worker had only a little anti-reconnaissance consciousness, all learned from movies and TV shows. The initial fluke mentality dissipated, and the remaining time could only be led by the nose by the criminal police.

Hou Lejia, who had guarded all night, breathed a sigh of relief, and finally gave birth to some optimism in his tired mood.

Robbery is one of the eight major crimes stipulated by the Criminal Law, and the name of the major case team comes from this. For such cases, the police station has always attached great importance to it. In order to solve the case last year, Hou Lejia ran for several days without sleep, but did not find useful clues...

Being able to solve the case this time and successfully catch the person also gave Hou Lejia, the criminal police brigade captain, a great sense of accomplishment.

After thinking about it, Hou Lejia took out his mobile phone and called Huang Qiangmin of the Criminal Police Brigade of the neighboring Ningtai County.

The bell rang three times.

"Thank you, Captain Huang." Hou Lejia's voice was sincere.

Huang Qiangmin was a little stunned: "Did I provoke you again?"

"No, seriously, sincere thanks." Hou Lejia's voice was a little more sincere. It was a thank-you call, so don't enter the common mutual-dissing link.

Huang Qiangmin hehe smiled: "Thanks for what?"

"You don't know?" Hou Lejia was stunned, then laughed inexplicably. After laughing, he told Huang Qiangmin about the result of the fingerprint coordination check and the situation of catching the person, and said: "Speaking of this case, it is also a coincidence. The victim reported the case the next day, and it happened to rain that night, so many pieces of evidence could not be found. Of course, the suspect also relaxed his vigilance, thinking that we had forgotten this case, heh..."

This time, it was Huang Qiangmin's turn to be silent.

After a few seconds, Huang Qiangmin said slowly: "In this way, you solved a robbery cold case?"

"Right. I caught it back with my own hands. Thank your trace examination for me, and invite you to dinner when you have time." Hou Lejia ended the call with a smile.

Huang Qiangmin pinched his mobile phone, put it back in his pocket with force, turned around and went to the fourth floor where the Criminal Science Squadron was located.

He wanted to see how the trace examinations who called for bitterness and tiredness all day long were foraging.

Trace examination room.

Yan Ge held a steaming teacup, sipped the hot tea while evaluating the fingerprints in front of him: "It's too blurry. Powder was brushed on the leather. What were they thinking? Now the fingerprints are collected..."

"Strict! Wang Zhong! You have the ability!" Huang Qiangmin examined the surroundings, his eyes sharp like a stray cat.

"Team Huang." The two trace examinations were shocked and stood up.

"What are you doing all day long?" Huang Qiangmin's tone was severe.

The two trace examinations were panicked. What inappropriate things did we do? We usually do these things often, and we didn't get scolded...

The police officers of the Criminal Science Team who have been doing trace examination for many years have had little time for Huang Qiangmin's "military training", but precisely because of this, they are more unaccustomed to Huang Qiangmin's severity.

"Matching fingerprints is a good thing, but don't you know how to report to your superiors first? What about your organizational discipline?" Huang Qiangmin's brows also wrinkled, fierce as if he wanted to kill a mouse.

Yan Ge and Wang Zhong were both blank, shaking their heads in unison.

Yan Ge asked in a low voice: "What fingerprints did we match?"

Huang Qiangmin was really confused this time, thought for a moment, and said: "Longli County solved a robbery case, a cold case, and found the suspect through fingerprint comparison. Old Hou called to thank me. Didn't you two do it?"

"No." Old Yan and Little Wang shook their heads again, a little difficult.

"Find someone to ask." Huang Qiangmin sat down directly.

He now has the feeling of solving a case, eager to want results, or find a suitable path.

Yan Ge and Wang Zhong had to make phone calls separately.

Doing trace examination often has coordination tasks, and asking is normal.

Before long, the two hung up the phone separately and returned to Huang Qiangmin.

Huang Qiangmin looked at the expressions of the two, and his expression became serious. The two people's expressions were too solemn, so Huang Qiangmin had to have a lot of associations.

"The news I received here." Old Yan coughed twice, came to Huang Qiangmin, and his eyes drifted unconsciously to the position of the forensic office, saying: "The one who did the fingerprint comparison should be Little Jiang in our team. Jiang Yuan."

"Jiang Yuan... which team?" Huang Qiangmin didn't even match the person for a while. He is the brigade captain of the Criminal Police Brigade, and his subordinates include multiple criminal police squadrons, as well as police dog squadrons, criminal science squadrons, and anti-drug squadrons, etc., with hundreds of people and dogs in the whole team, and he is not sensitive to newcomers.

Little Wang said: "It's the forensic doctor who just reported for duty, the one who is particularly tall."

"I know who it is when you say that." Huang Qiangmin finally matched the person and the name. He had hundreds of criminal police officers under his command, which was true, but forensic doctors were always configured with one or two, and on the other hand, Jiang Yuan's height always made people impressive.

After finishing the person, the three fell into silence again.

Yan Ge and Wang Zhong, who had been doing trace examination for a long time, were full of paste—helping other units coordinate fingerprints is one thing, and making fingerprints that other units can't make is another thing.

Simply put, coordinating fingerprints does not necessarily mean that the fingerprint difficulty is high, and it is also possible that the fingerprint database coverage of other units is not enough. Nowadays, there is actually no such thing as a national fingerprint database, including various provinces, all of which are fingerprint databases that only cover a part of fingerprints.

Therefore, most police officers who do trace examination check fingerprints by first checking the criminal fingerprint database of their own city. If they can't find it, they check the vehicle management office, or information databases such as identity information. If they still can't find it, they will find the provincial department, send a coordination letter, and ask other units for help.

This kind of fingerprint that cannot be matched due to reasons such as databases is the fingerprint trace that Old Yan and Little Zhao are familiar with. And those who rely entirely on "brute force" to match fingerprints, they have seen less.

"Go and see." Huang Qiangmin got up and walked out, Yan Ge and Wang Zhong followed without hesitation.