Things that solve crimes

The sun sets and the sun sets.

Yang Zhengnian was so worried that his hair almost fell out in the office. What was he worried about? I'm worried about the recent series of battery car thefts. Although the cases are small, the amount of damage has reached tens of thousands of yuan. It was not easy to find a fingerprint, but no one can compare it. If this continues, the amount of losses will become larger and larger, turning into a major case, which even his director cannot bear.

"Ding" the phone rang. Yang Zhengnian immediately picked up the phone and checked it. This was the special ringtone he had set. One ring will alert him to new news.

After reading the information, Yang Zhengnian was pleasantly surprised and won the competition.

"Old Xiao," Yang Zhengnian yelled, "there is a result."

Xiao Qun in the next office heard the roar and hurried in, "What's the result?"

"The case of stealing a battery car." Yang Zhengnian touched his hair and finally saved it.

Xiao Qun was very happy. The suspect in this case was very cunning. He would dress up in disguise every time he stole something, and he would also pick blind spots where there were no cameras or cameras. Once I almost found someone, but they ran away and only one fingerprint was found.

After feeling happy, Xiao Qun waved his hand and called all the policemen who were fine, and went to arrest them together.

The moon and stars are sparse, and the stars and the sun shine brightly.

A group of policemen wearily escorted the suspect back to the police station. The body is very tired, but everyone is very happy in heart.

This time a big fish was caught. The suspect not only stole battery cars but also computers and jewelry. This guy is a thief. He stole from someone who had no one at home for a long time. No one knew about it and no one called the police.

So far, the amount of losses in this case has reached more than 10 yuan, which is enough for sentencing.

Xiao Qun also dragged his tired body back to the office, boiled a pot of water, made a bowl of instant noodles, cracked two eggs, and ate them hungrily.

Halfway through the meal, Yang Zhengnian walked in. Xiao Qun looked up and was a little surprised, "If you don't go home yet, don't worry about your sister-in-law scolding you."

"You went to arrest people this afternoon, but you never came back. Aren't you worried about me?" Yang Zhengnian said with a smile.

"Who matched the fingerprints this time?" Xiao Qun asked while eating. There was a shocking murder in the city next door. All the capable trace inspection personnel in the province went to the city next door to provide support, and basically no one was left.

"I asked in the afternoon, it was Qin Henian." After Yang Zhengnian finished speaking, the two of them fell into silence.

Let's not say that Qin Henian is a forensic doctor. Just saying that he can do fingerprint matching and match fingerprints are completely different things.

Most criminal investigators who come out of modern police academies know how to compare fingerprints, but there are a few who can match fingerprints.

Nowadays, there is no such thing as a national fingerprint database. Including each province, it only covers a part of the fingerprints.

Therefore, most police officers who conduct fingerprint inspections will first check the city's fingerprint database. If they cannot find it, they will then check the vehicle management office or the information database of identity information. If they cannot find it, they will contact the provincial department. Send a joint investigation and ask other units for help.

Therefore, sometimes fingerprints cannot be generated, most likely because the fingerprint database does not have enough coverage. Yang Zhengnian and Xiao Qun are only familiar with fingerprints that cannot be matched due to databases and other original records, while Qin Henian's "head-to-head" competition with incomplete fingerprints , is rare.

"Today's young people are amazing." After Xiao Qun finished speaking, he finished the last ball, wiped his mouth, and left.

"What are you doing?" Yang Zhengnian asked blankly.

"Go home and go to bed." Xiao Qun replied as he walked out of the office.

Looking at the sky outside, the moon was hanging in the sky. Thinking of his wife waiting at home, Yang Zhengnian left in a hurry.