Criminal Investigation: Forbidden Rose

After Kang Cheng was controlled by the police, his reaction was once very violent.

"What?" The man was dumbfounded, the corners of his eyes were almost split open by himself, "Are you kidding me? My wife died? The bathroom is full of blood??? No——what the hell is going on, my wife is dead? Where is the body???"

姜沫没搭理他，而是厉声问道：“5月16日晚上你并没有直接前往珍珠屿参加会展。16日晚上八点,到17日下午04:30之间,这段时间里，你在哪里,在做什么？”

Kang Cheng stared at Jiang Mo, gritted his teeth and said nothing, cold sweat slowly broke out on his forehead, blue veins were visible to the naked eye.After a long time, Kang Cheng wiped his forehead and said dejectedly: "I have been at my friend's place since I left home, and I went to Pearl Island the next afternoon."

Soon, his "friend" was also called.

The man's name is Shen Kaiwen. He is tall and well-mannered. He is a simultaneous interpreter for a large company.After verification, the car that picked up Kang Cheng on May 5 was registered under the name of Shen Kaiwen.

Xia Yi suddenly remembered what Shao Lin said before: "Didn't you see it? Kang Cheng is gay."

He saw Shen Kaiwen striding forward, without hesitation, he held Kang Cheng's hand directly, and wrapped his arms around his shoulders as if comforting, and hugged him into his arms.The old criminal policeman on the side cleared his throat, but he turned a blind eye to Jiang Mo, and said in a cold tone, "On the night of May 5th, I picked up Kang Cheng, and he was with me all the time. The next day at noon just left."

Yan Jingjing sneaked in, handed Jiang Mo some water, and went out quietly.

Jiang Mo lowered his head and turned around, frowned slightly: "Mr. Shen, according to the bank transfer records, you and Kang Cheng have very close economic ties. The transfer amount is too large, and your testimony may not be enough. So, Kang Cheng Sir, is there anyone else who can prove that you were not at home that night?"

Kang Cheng wiped his forehead again, his face was pale.He looked at Shen Kaiwen, then at Jiang Mo, but remained silent.Shen Kaiwen also watched Kang Cheng several times, and finally, he helped Kang Cheng make a decision: "Enough, when is the time."

Shen Kaiwen made two phone calls, and the police station came to the police station with two muscular and handsome men, claiming that they were also at Shen Kaiwen's house on the night of May 5, so Kang Cheng almost couldn't get up at noon the next day.As soon as they saw the police, the two men frantically begged for mercy: "Police, we are not prostitution, we met in a bar before, we are all voluntary, not for profit!!!"

All the criminal police present: "..."

But Shen Kaiwen slapped his face mercilessly on the spot: "Officer, this is our scheduled chat record. As you can see, the scheduled time was at 5:16 pm on May 10, and the agreed number of people was four. This is the transfer after the end …That night, Kang Cheng was indeed at my house, and he never went out. And since then, I think, people at the exhibition can prove that Kang Cheng never came back?”

Shen Kaiwen said coldly: "I have been dating Kang Cheng for three years, and I usually play on a large scale. I know this is not something glorious, but we are not villains. Killing and dismembering for this is unnecessary."

Kang Cheng covered his face with one hand and couldn't say anything. The other two men knelt down with their heads in their hands very skillfully and consciously, as if they were on the scene of an anti-pornography campaign.

Jiang Mo squeezed the center of his brows with a headache, and slammed the documents in his hand on the table, saying that you should go to the next door to do the anti-pornography report, because you are too busy here and have no time.

"...Is this the legendary multiplayer sport?" Yan Jingjing, who was listening next door, almost scattered the melon seeds in her hand, "This, this, this, these four men? Do you know how to play in your circle? Who will come up with it?" Who is this? A strong man stacking frogs?"

Probably because the word "stacking frogs" is too graphic, as calm as Shao Lin, and his face is a little tense.

"Don't listen, don't listen, this case is not suitable for young children!" Xia Yi quickly instructed classmate Yan Jingjing to go to work on other things, "Yan Fangyu can't find her phone, where is her laptop at home? Did you clean it?!"

Yan Jingjing ran away quickly.

"Maybe," Shao Lin looked at the next door, rubbed his chin, and said softly, "Yan Fangyu just wants to see Kang Cheng admit this publicly? She wants to publicly expose that she is a gay who cheated on her marriage and smashed the SweetHeart brand. This is why she was cheated." marriage revenge."

Xia Yi was dubious: "Then blood in this room is really...?"

"Yan Fangyu's home is equipped with a very high-end home theater set. But Kang Cheng hardly goes home, so Yan Fangyu should be the one who usually watches movies. I found a lot of David Fincher's movies in her cabinet, "Social Network", "The Seven Cases" "Sin" and so on, I collected all the award-winning books, but I didn't see "The Vanishing Lover" alone." Shao Lin lowered his eyes, "The story of "The Vanishing Lover" happens to be about a heroine trying to force her husband to admit The story of cheating and pretending to be murdered, if she is really a fan of David Fincher, it is impossible not to know about this film."

"I think she got inspiration from it, that's why she hid the film in a cover-up." Shao Lin paused, "The heroine said a word in "The Lost Lover", which roughly means—— To convince the police that your husband killed you, all you need is a stupid best friend and some blood. That stupid best friend is just like Zhu Luo, and as for this blood..."

Speaking of which, Shao Lin glanced at Xia Yi, then shook his head: "I'm just guessing casually."

In the final analysis, Yan Fangyu's whereabouts are still unknown, and the bathroom is like a scene of dismemberment. It is impossible for the police to turn a blind eye to it, and it is even more impossible to assert that this is a disguised scene based on a guess.

However, there are indeed many doubts about the "dismemberment theory"-for example, in which room did the first attack occur?Why did the blood start in the bedroom, but the bed was clean?Moreover, the strong alkali can only dissolve the tissue, and the bones will definitely remain.No human remains were found in the sewer filter of Yan Fangyu's house. Assuming that Yan Fangyu was really dismembered, where did those bones go?

The blood pattern identification expert was from another province, and he was extremely cold. The photos had already been sent, and he didn't know when he would receive the results.

Coincidentally, comrades from the Yunzhou Police Dog Base of the Ministry of Public Security recently came to Yan'an to exchange guidance and share their rich experience in police dog training.In recent years, they have developed a special training for search and rescue dogs to distinguish bloodstains.According to legend, this kind of blood-stained search and rescue dog can not only identify the blood-water mixture that was diluted three months ago, but can even find the murder weapon that was once stained with blood and cleaned. [1, 2]

Their Captain Zhou had a close friendship with the Yunzhou Public Security Bureau. After a phone call, the police dog trainer came to the door with a working dog.

Shao Lin had never been in contact with search and rescue dogs in his previous work. He thought it would be a majestic German Shepherd, Border Collie or Springer, but he never expected that a fluffy short-legged and big-ass appeared at the door Corky, named Ke Ke.

Everyone in the Western District Bureau: "Huh?!"

Regardless of Ke Ke's short stature, she is an old criminal police officer who has been in the police force for four years, has solved more than ten major cases, and has had three international exchanges. She is about to retire.Ke Ke is six years old and is no longer suitable for front-line search and rescue work. However, due to her rich experience in the field of blood stain identification, she was recently taken by her trainer to travel around as a model dog.

Ke Ke is wearing a police dog uniform, with a shiny coat, and the whole dog stands upright and majestic.

When Xia Yi saw Gouzi, her heart softened. She squatted down and gave Corgi a bear hug, and patted her head vigorously.However, petting a dog is cool for a while, and it is always cool to pet a dog all the time.In the end, Ke Ji rolled his eyes, glared at Xia Yi very dissatisfied, shook his head vigorously, and snorted.

"Hey, hey, I said, what are you doing, you!" The police dog trainer hurried over and slapped Xia Yi's paw away vigorously, "She is concentrating on her work, and you still come to disturb her!"

"Okay," Shao Lin also pulled Xia Yi away, "I'll accompany you back to fuck my son on weekends."

When Xia Yi's work obstacle was successfully eliminated, Ke Ke made two "barks" in the bedroom and in front of the bathroom respectively, then sniffed east and west, and finally ran around on her short legs, Returning to the trainer, he raised his head and flicked his tail, then lay down on the spot without saying a word.

Xia Yi stared at the ball of little buttocks, scratching his head in confusion: "What does this mean?"

The dog handler was also a little confused: "Uh, this doesn't seem to be abnormal..."

"No abnormalities? The blood is all over the room! Now we need to look for other traces of the blood in the room, possible tools for committing crimes, and, did the smell of this blood come out? Go downstairs or something?"

The trainer took Ke Ke's family up and down to sniff around again, but Officer Ke squatted quietly at the trainer's feet after barking at the door of the house.

"By the door, in this corner, it should have been exposed to blood. Everything else is fine."

Negative for luminol in the corner by the door.

Xia Yi was melancholy: "What exactly is no problem?"

"Before we trained... we did a screening between a woman's menstrual blood and peripheral blood." The trainer concluded hesitantly, "Ke Ke's performance means that the blood is menstrual blood, and there is no problem."

The criminal police present were startled: "Menstrual blood?!"

Xia Yi's eyes widened, and the straight man said violently on the spot: "Which one can come to my aunt to spray out such a scene of dismemberment?!"

Shao Lin flipped through the fluorescent photos in the bathroom again.

Although the luminol reaction shows that there is blood everywhere around the bathtub, the concentration of the blood before "cleaning" cannot be judged by the luminol reaction.Luminol is very sensitive and reacts whenever there is iron.Suppose Yan Fangyu used some tool to collect menstrual blood, then diluted it into water, and sprayed it on the wall with a water gun or a spray bottle... It doesn't seem impossible?

Since the criminal police were very unconvinced by Officer Ke's judgment, they still threw this question to the Judgment Center: "Director Yu, can you tell if it's menstrual blood or peripheral blood?"

Assuming it's a lot of blood, it's not a problem at all.Just make a smear of blood and put it under a microscope - menstrual blood will have a lot of impurities from the endometrial flakes, while peripheral blood is clean.

However, the problem is that most of the blood has been cleaned up now, except for the little blood clot stuck in the crack of the door.

Finally, Yu Min nodded: "Let me see if the mRNA can be extracted from this book. If it has been degraded, it's hard to say."

In a person, although the DNA in different tissues is the same, different tissues will have different protein expressions, that is to say, some unique tissues will produce some unique mRNAs to help forensic doctors locate the source of blood.

A day later, Yu Min once again sent a reply that lived up to expectations: "Compared with the housekeeper gene, the mRNA fragments MMP7, MMP11, and MUC4 in this blood sample are much higher than those in peripheral blood. It does mean that this blood comes from the endometrium." [ 3]

Corgi proudly puffed out his small chest, was picked up by the trainer, and turned around in a circle.

Yu Min added: "Normal women's bleeding volume is about 60ml a month. Collect it with a menstrual cup for 2-3 months and dilute it at 1:10, which can roughly restore the luminol in the bathroom."

Xia Yi immediately petrified after hearing this: "This... this is also..."

"She may not be able to draw venous blood herself, or she is afraid of pain." Shao Lin thought for a while and added, "It is also possible that she is sending a message—she hates Kang Cheng for being gay—so she has not been pregnant. Bedroom Both the bathroom and bathroom were cleaned, and she deliberately left this loophole for the police to discover. She was mocking when she chose menstrual blood."

The author has something to say:

Officer Ke: Wang! (pride)

References for Bloodstained Search and Rescue Dogs

[1]东南快报."厦门警首创"血迹搜救犬"技术3年侦破15命案."?中国工作犬业?12(2011):54-54.

[2] CCTV [Challenge Impossible-Second Season] 20161030 Issue 01

Aunt vs peripheral blood reference:

[3]Lindenbergh,Alexander,etal."Amultiplex(m)RNA-profilingsystemfortheforensicidentificationofbodyfluidsandcontacttraces."?ForensicScienceInternational:Genetics?6.5(2012):565-577.