Chapter 076 There are many clues in the field, and the technical introduction is a combination of cases

At 9 o'clock in the evening, everyone attended the case meeting in the conference room of the police station, and Director Tang also took the time to rush over.

According to the division of labor, each group reports on the work of the day.

Tan Team Leader Says:

"Our group mainly did two things today, one was to visit the victim's family, and the other was to screen a suspicious person.

When interviewing the victim's father, Yuen Kwok-chi, he reported that he had bolted the front and back doors last night, and that he had not paid attention to the back door after discovering the situation in the morning, but he was sure that the front door was bolted; The investigation of his two younger brothers, Yuan Zhengping and Yuan Zhengli, both reported that when they woke up in the morning, the back door was open. Therefore, it is inferred that the perpetrator entered and exited through the back door more likely.

At the point in time, at one o'clock in the morning, Yuan Guozhi got up, opened the back door, and went to the toilet, at this time the back door was still bolted, and no abnormal situation was found, so the time of the crime was after one o'clock in the morning today.

We checked the time Yuan Guozhi said, and the time was accurate.

What is very strange is that Yuan Guozhi's family has not heard any noise.

We rushed to Peng's Tai Uk Wan in Peng's big house village and found Yuan Shuhua's boyfriend Peng Zhigao, and after understanding from the side, his family confirmed that he was at home last night and did not go out, which can rule out the suspicion of committing the crime.

The result of our group's investigation today is that the crime occurred after 1 a.m., and it is very likely that the perpetrator entered and exited from the back. ”

"Is it possible that when Yuan Guozhi went to the toilet, the perpetrator slipped into the room?" Director Zhang asked.

"This situation can basically be ruled out. Because his toilet is not far from the back door, it is just time for him to smoke a cigarette. Besides, in the dead of night, if there is the sound of someone moving, he can definitely hear it. Tan team leader introduced.

Ke Zunping, the leader of the second group, said:

"Our group is mainly visiting the periphery, and from the current situation, there is a clue.

During an interview with Yuan Guozhi's neighbors and people from Benwanzi, villager Yuan Guohao (male, 56 years old) reported that he got up before 4 a.m. In order to free up the cattle while driving the farm. Because the oxen he used were shared by several families, and each of them was in a hurry to use it, he got up early in the morning.

A little more than 4 o'clock, it is estimated that it is about 4 o'clock. He led the oxen. Arch the iron plow. When I walked to the mouth of the bay, I saw a black shadow walking towards the east of the bay, and the pace of walking was relatively fast. From time to time, you can still see the lights. Due to the distance, he couldn't see the dark shadow's face and clothes clearly, but by the shaking of the light, he felt that the other party was holding something in his hand, and he couldn't be sure what it was.

This black shadow appeared near the scene at the time of the crime, and there is a suspicion of a major crime!

We continued our visit in the east direction of the bay, that is, the direction in which the black shadow had left, and found another eyewitness, Wu Fengjie, in Wupingjiang Bay next door.

Wu Fengjie, male, 65 years old, farmer, has asthma. He got up early to go out to herd the cattle. On the machine farming road leading to the town in the bay, there was a middle-aged man with a bag in his hand who overtook him quickly from behind him, walking in the direction of the town, according to our repeated calculations, the time should be around 4:30, we conducted a reconnaissance experiment, from the scene of the bay to the location where Wu Fengjie met the middle-aged man, the time of walking was just right, plus, this middle-aged man and the black shadow mentioned above are driving in the same direction, therefore, We deduced that the middle-aged man Wu Fengjie met and the black shadow that Yuan Guohao said earlier were one person! ”

There is a basis for such reasoning, and I can't help but nod.

Ke Zunping, the leader of the group, continued:

"After we did our work repeatedly, after several people ate three packs of cigarettes, after I made a decision that we must keep it secret, Wu Fengjie said that he knew this middle-aged man, who was from Wang Xinghewan in the neighboring village, and he didn't know the specific name, but he knew that this person's father's nickname was Wang Mazi.

We quickly rushed to Wang Xinghe Bay in Shijiawan Village, after investigation, there is only one person named Wang Mazi in the bay, and Wang Mazi also has only one son, his son's scientific name is Wang Caijiang, male, 38 years old, 172CM tall, farming. The economic situation is average, he is very cunning, and he has no criminal record or bad deeds. After an in-depth investigation into the periphery, it was found that this person often went out at night, and the masses could not figure out what he was doing at night.

Given the seriousness of the case, we did not alarm him. ”

Director Zhang asked:

"What about Wang Caijiang's family situation?"

Team Leader Ke replied:

"Wang Caijiang and Wang Mazi have been separated, Wang Caijiang's family has a family of four to live, his wife is called Hu Sufang, the same year as him, and he has two daughters, the eldest daughter Wang Fang, 16 years old this year, and the youngest daughter is called Wang Xiaofang, 15 years old this year, she did not go to school and worked as a farmer at home."

"Okay, this clue is very important!" Director Tang said with a smile.

Chen Guanghui, the leader of the third group, said:

"We have conducted a thorough investigation of the same type of cases in the four villages of Yuanjiajia Village, Shijiawan Village, Xiaxian Village, and Fengpu Village, and have not found the same type of case, but we have found out the same type of person, and the masses have reported that Xu Pingjun in Xujiawan, Xiaxian Village, has a history of burglary and rape of women, and we have carried out a lot of secret work around Xu Pingjun.

XU PINGJUN, MALE, 28 YEARS OLD, SINGLE, ABOUT 165CM TALL, FARMING. Usually behaves in a flowing, likes to joke with women, and takes the opportunity of joking to hug women. It is well documented that on the 10th day of the lunar month of the previous year, he slipped to the house of Ke Xi'e (34 years old), a woman in Benwan, and hid in the kitchen.

After checking with Ke Xi'e, there is indeed such a thing. Since Ke Xi'e's husband Xu Kai usually goes out to do things and is not at home, Xu Pingjun often goes to her house to play, and sometimes does things to Ke Xi'e. However, after being driven away this time, Xu Pingjun never went to her house again.

That's the case with our group. ”

Subsequently, the intelligence team and the police station reported their respective situations, and the police station found many suspected rape cases, and I recorded them in my notebook one by one.

After the field service and the police station introduced the situation, Captain Zheng said on behalf of the technical team:

"I would like to introduce the on-site investigation to the leaders.

Yuan Shuhua's house is located in the middle of Yuanjiawan, Yuanjiajia Village. It is a brick and concrete structure with four rooms, sitting north and facing south, there is a toilet in the northwest corner, 18 meters away from the house, and other directions, near or far, are residents' rooms. In the middle of the four houses is a hall house, with Yuan Shuhua's bedroom on the west side and her parents and two younger brothers on the east side.

There are two doors to the outside, which are the front door and the back door. According to the visit. The front door was latched after the incident. At the front door, we also found no suspicious traces; Just now, the team leader introduced, and Yuan Shuhua's two younger brothers both reflected that the back door was open. The rear door is a split wooden door, at the wooden door latch. We found fresh traces of dots and lines. After my research with Captain Lee. According to the characteristics of the traces, it was analyzed that the perpetrator entered the room after flipping the latch with a scissor tip, and we also conducted experiments. Experiments have shown that it is possible to open the door in this way. According to the analysis, this back door is the passage for the perpetrator to enter and exit, and the door is dialed to enter the room.

After repeated observations, a filamentous item was found on the door locks of Yuan Guozhi's room and his two sons' rooms, which is more likely to be the residue of hemp rope, and the analysis believes that the doors of these two rooms have been buckled by people, leaving hemp rope residues.

The door of Yuan Shuhua's room was open, and there were no obvious signs of damage; There is a window on the south wall, the window is installed with glass, but two pieces of glass are missing, there is no anti-theft net installed on the perimeter, and no curtains are installed in the interior, and there are no obvious signs of pry damage in the window, which excludes the possibility of entering the house through the window.

There is a table under the south window of the room, there is a bookcase in the southwest corner, there is a wardrobe in the northwest corner, and there are 300 yuan in cash in the clothes in the wardrobe. There is a bed in the northeast corner, there is a pair of women's shorts on the north side of the bed, there is a hole in the trouser stall, which is oval, about 3CM in diameter, most of the edges of the wound are neat, and the part is jagged. In the middle of the bed, there are some blood stains.

There was a button switch on the east side of the bed, and a thick line of glove prints was extracted from the button, but the switch and the room light bulb were missing, and we searched the perimeter of the scene, but the switch and light bulb were also found.

Let me introduce Yuan Shuhua's injury below:

There is a tooth mark on the right breast, which is relatively superficial; There are two parallel scratches on the inner thigh on the right side, which are measured to be 7CM in length, 2CM wide and 0.2CM deep in a single scar, and the distance between the two scars is 5CM, obliquely from the inner thigh to the middle of the thigh, weighing inside and light on the outside.

After forensic examination, Yuan Shuhua was indeed raped, there was fresh redness and swelling in the vagina, and there was a fresh rupture of the hymen, and the specific location of the rupture was at nine o'clock.

Based on the site investigation, we came to the following conclusions:

1. Nature of the case: rape, injury;

2. The perpetrator is one person, male.

3. The process of committing the crime: The perpetrator peeked through the south window and saw that only the victim was sleeping in the room, so he bent to the back of the house, opened the back door with the tip of scissors and entered the room, and after using hemp rope to buckle the doors of the other two rooms, he pushed the door into Yuan Shuhua's room, tore off the button switch, dropped the light bulb in the room, used a special crime tool, injured and stunned Yuan Shuhua, cut the shorts stall with scissors, and untied Yuan Shuhua's short-sleeved shirt and bra, and raped Yuan Shuhua. In the process of rape, it may also be that he felt inconvenient, took off Yuan Shuhua's shorts again, and continued to rape.

After the rape was completed, he took away the button switches, light bulbs, and ropes that were used to buckle the room, and fled the scene through the back door.

4. Traces and physical evidence at the scene: sperm spots, tooth marks, rope fibers, scissor marks, and glove marks.

5. The tools that the perpetrator carried with him were: lighting tools, scissors, ropes, and special stun tools.

6. Collusion case: We have repeatedly compared the scars on Yuan Shuhua's body, and their length, depth, and separation distance are consistent with the scars on the victim's body in the previous case, which can be affirmed to be formed by the same tool, so this case and the previous case can be completely investigated in tandem.

That's what happened to our site surveys. ”

After Captain Zheng finished speaking, there was silence in the conference room, and I knew that there were no fingerprints and footprints that everyone was expecting, so I was very disappointed.

For a while, the atmosphere in the conference room was solemn, and there was a feeling of suffocation, only the sound of drinking water, the sound of smoking vigorously, and occasionally a few coughing sounds.

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