Chapter 341 Handwriting identification expert

Zhou Ning's words calmed everyone down, and Da Zhao thought about it and nodded.

"What Zhou Xiaozhou said makes sense. Generally, people who rob or kidnap will be plundered from the valuable things on the hostages. After all, they are for the purpose of robbing money, but this person can give up such a valuable golden lock, and his concentration is extraordinary."

Zhou Xiaozhou glanced at the note and looked at Xu Dayuan.

"I hope the letters sent by the kidnappers will be sent to the 2000 February 3rd and the 2004 April 14th kidnappers will be sent to the test and analysis to see if fingerprints or residues can be found. The extraction method that Sister Cui used last time can also be collected on paper. We need to dig out more points to view now.

In addition, 4.14, who were the people who received the police? Which brigade went to? Who can contact evidence? We will not participate in these. I want to know if there are similarities in the letter notes of these two cases. Can you find a handwriting expert to analyze it?"

Xu Dayuan frowned and looked at Zhou Ning and nodded.

"You can find the expert yourself. If you really can't, please ask Director Sun. I will find the expert he compared last time to see. As for the social relations investigations of Chen Gang, Zhu Yantao, Zhu Guotai, Fang Yue, and the investigation of the police involved in the case of 4.14, I will do it here.

I want to get your criminal image as soon as possible. No matter what you think of, from the aspects of weapon, behavioral habits, etc., just tell me directly that you don’t have to verify whether the direction is wrong. Let’s conduct actual investigation to verify everything.

Liu Yufei and Dazhao went there. One was to find a letter, and the other was best to bring him there."

Zhou Ning didn't refuse. In fact, he didn't want to alarm Zhu Yantao. After all, the old man has been immersed in the sadness of losing his child for so many years, and he has no eyes yet. Too much disturbance will cause him to have a big emotional ups and downs. If you want to investigate carefully, there must be that letter.

With a sigh, Zhou Ning nodded to Da Zhao.

"Go, Fatty, you are familiar with it."

Zhou Ning did not give too much instructions. Liu Yufei had already grabbed her coat, and Da Zhao clasped her hands at Liu Yufei.

"Sister Fei, can we change into casual clothes?"

Liu Yufei glanced at Da Zhao, Xiaobai and Xiao Zeng subconsciously moved to the side, waiting for Liu Yufei's roar, but Liu Yufei didn't say anything, just carried a police uniform coat.

"Let's go, I'll change my casual clothes when I go to the front floor. Are you driving or me?"

Da Zhao grinned.

"How can you be tired? Of course I will drive, Zhou Xiaozhou borrowed me the car."

Zhou Ning didn't say anything else and threw the car keys to Da Zhao.

The two left, and Liu Yongxin bumped into Zhou Ning.

"Where does this kid sing?"

Zhou Ning looked at the direction at the door. Zhou Ning understood Da Zhao's arrangement, and the arrangement was quite careful.

"Zhu Yantao left Qindao but didn't want to be disturbed. He drove over in a police uniform and the people around him must be talking about it, so that some people with ulterior motives would not find anything. Now we can only wait and wait until Da Zhao takes the letter back and then compare the handwriting."

Liu Yongxin poked Zhou Ning.

"Don't waste time. Call Director Sun and ask the handwriting appraisal expert if he has time and take it directly, so that both sides will not delay."

Zhou Ning shook his head and called Xia Momo.

"Teacher Xia, are you at Qinda University? Last time I heard you know a handwriting appraisal expert. I don't know if it's from Qindao or from the provincial capital?"

"You can't be polite?"

Zhou Ning was stunned. He thought about it and felt a little rude to speak.

"Sorry, I'm a little anxious, I didn't pay attention to my tone."

"Forget it, if you are polite, you will definitely be an unfamiliar person. The expert I mentioned is my father's friend. He originally worked in the judicial appraisal center in the provincial capital. After retirement, he returned to Qindao. If you have anything to be identified, I can ask him if he has time."

When Zhou Ning heard that it was Xia’s friend, he paused slightly. After all, his previous suspicion of Xia’s father made Zhou Ning apologetic.

"I'm a little embarrassed, but please contact me. Da Zhao and the others went to get the comparison items. Even if I get them back, I'll have to go tonight. Why don't you ask an expert to come tomorrow morning to analyze it?"

"I got it, I'll make an appointment to call you."

June 26, 2012

Early in the morning, Zhou Ning came to the office and when he pushed the door open, he saw what Da Zhao and Liu Yufei were saying. Seeing Zhou Ning, Da Zhao looked excited.

"Zhou Xiaozhou, you are here, there is good news."

Zhou Ning looked puzzled. They took Zhu Yantao back last night, and Da Zhao went to arrange for Fat Master to rest. He didn't talk about anything that night. At this time, he said there was good news. Could it be that there was anything found on the threat letter and note?

"What did Sister Cui find?"

Da Zhao rubbed his nose, grinned and handed over a report.

"Okay, I won't be having a puzzle with you anymore. I'm always the one who gets hurt. Sister Cui is so awesome. He extracted a lot of fingerprints on the paper. After fumigation, although the materials on the two papers are different, he found a special problem.

Even on both sheets of paper, several special traces were found. The paper was wrinkled in part, and the traces were similar to finger prints, but the fingerprints were not clear. My elder sister said that this was the trace left by the wet fingers. She tested the local symptoms and found sodium chloride, potassium, magnesium, calcium, lactic acid, urea nitrogen, etc..”

Zhou Ning quickly took the report, looked carefully, and then looked at another photo of the threatening letter. From the angle of the slightest pouring, you can indeed see the notes and the letter with several traces of curly folds.

"Sister said that there is sweat in it according to the ingredients, but the residual amount is so large that she is a little uncertain."

Zhou Ning stared at the report and these photos. After thinking about it for a long time, Liu Yufei was already anxiously coming over.

"Director Zhou, what did you think of? Tell us."

At this time, the door opened, and Xu Dayuan and Liu Yongxin walked in quickly. Seeing Zhou Ning's expression, they were a little confused. Dazhao quickly explained. Xu Dayuan was smart and waved his hand at Liu Yufei.

"Don't bother him, let Zhu Yantao go to the conference room upstairs in a while, and we'll go there to chat."

Zhou Ning raised his head and looked at Liu Yongxin.

"One of these two cases happened in Qidong and the other on Qindao, and there was no overlap in the case handlers. Moreover, one was on the 29th day of the twelfth lunar month and the other was April 14, which was not very hot, but the fingerprints of the sweat-soaked fingerprints left on it were the same."

Liu Yongxin also became interested, so he took a look at the two photos.

"You mean, the only one who can touch two sheets of paper at the same time is the murderer. No matter when this person is, he is always sweating profusely. Maybe only his hands will continue to sweat, which exceeds the normal amount of ordinary people. Isn't that hyperhidrosis?"

Zhou Ning nodded.

"If it is not secondary hyperhidrosis caused by a special disease, the general patient's hyperhidrosis will improve after the age of 25."

Xu Dayuan blinked and seemed to have not understood. After all, such diseases are not common.

"What does it mean? Let's make it clear, the murderer is sick? Or is Zhou Xiaozhou's result in the image of the crime?"

Zhou Ning smiled, and Xu Dayuan was always anxious.

"Do not be anxious. After a while, she will wait for Teacher Xia to come. She will take the handwriting identification expert and ask the experts to take a look at whether the original paper is needed for notes and analysis. If I don't need to ask Sister Cui to do a detailed analysis of the materials, after all, I dare not destroy the evidence now."

Xu Dayuan nodded, and Zhou Ning understood that he said this.

"Then wait a moment, but the same trace of sweat can be found on the two pieces of paper, which is a major breakthrough. But has the fingerprint not been searched in the fingerprint library?"

Da Zhao shook his head.

"The fingerprints extracted are all incomplete. This can be compared and identified. It is not possible to search alone."

Xu Dayuan sighed, and at the same time the door was opened. Xia Momo poked her head in and saw so many people, she was obviously a little surprised.

"Teacher Xia, you are here, come in quickly!"

Xu Dayuan waved his hand enthusiastically, Xia Momo smiled and opened the door, and reached out to the back. A white-haired old man walked in, about the same height as Xia Momo, and looked very kindly with a smile.

"Please, Mr. Hu, this is Director Xu of Qindao Municipal Bureau, this is Forensic Liu from our laboratory, and this is Director Zhou Ningzhou, the Second Forensic Office of the Technical Department. He asked me to invite you over."

As he entered the door, Xia Momo introduced the old man and of course, he also introduced to everyone that Mr. Hu was absolutely technical, and he did this handwriting appraisal in the judicial appraisal center in the provincial capital.

Xu Dayuan felt that he had found the treasure and rubbed his hands happily, but he knew that he was not smooth enough to speak, so he carried Da Zhao's collar and pushed the person in front of Mr. Hu.

Da Zhao was speechless and hugged Mr. Hu's arm.

"Hello Mr. Hu, do you want to take a break or find you a quieter place? I'm really embarrassed to speak up when I came up to ask you to make an appraisal."

Da Zhao smiled awkwardly, amused Mr. Hu, and patted Da Zhao Yuan's belly.

"This fat boy is good at talking. I'm not that pretentious, and I'm idle and can do an appraisal. I feel very happy that I'm not a waste who is scattered and waiting to die. Xiao Zhou, where are you going to appraise? Show me."

Without Zhou Ningdong, Da Zhao had already placed the notebook in front of Mr. Hu.

Mr. Hu didn't take out any reading glasses, so he approached the screen and looked at it. Da Zhao asked quickly:

"Does Mr. Hu need to bring the original or print a copy?"

Mr. Hu nodded.

"Give me a pair of gloves, I can just take a look at the original. After all, you have to observe the strength of the pen and whether there is any pause. I know this thing is an important substance and it will not affect your evidence collection."

Zhou Ning waved his hand, and Sun Gaozhi hurried to pick it up. Soon after, he took back two pieces of paper. Zhou Ning saw that Sister Cui was even more cruel and used two pieces of electrostatic plastic film to completely isolate the paper. He could see some light yellow and black fingerprint marks on it.

Mr. Hu was not unhappy, but his face was excited.

"Yes, your skills are quite powerful. It is very difficult to extract fingerprint information on paper, especially in the past and inappropriate storage factors. Most of the things you find are black."

Xu Dayuan licked his lips as if he was praised.

"Hehe, it's incomparable to the skills of the provincial and departmental departments. Then Mr. Hu, we won't bother you. Everyone here will withdraw. Da Zhao, Zhou Xiaozhou and Teacher Xia will accompany Mr. Hu. If you have any questions, we will wait outside."

Mr. Hu looked carefully and kept recording something in his notebook. Zhou Ning couldn't understand and dared not disturb him. Xia Momo approached Zhou Ning.

"If you have something to do, go and work hard. I'll wait here. The comparison won't be quick. After all, the handwriting on these two sheets of paper is basically irrelevant from the perspective of ordinary people."

Before Zhou Ning could speak, Mr. Hu looked up and smiled.

"Who said you have nothing to do with it? In my opinion, it has a big relationship!"
Chapter completed!