When He Mo came, he also brought a beautiful woman, tall and tall, wearing a pair of glasses, looking very Sven.

When he stood in front of Hong Qifeng, he introduced him: "This is Ding Meng, an expert doctor in psychiatry, and this is Hong Qifeng, the squadron leader of the criminal investigation team. ”

After the two sides shook hands, Ding Meng took advantage of Hong Qifeng's inattention and whispered to He Mo: "This is the Hong team you talk about every day, I thought it was a three-headed and six-armed figure, and his appearance is also very ordinary, where is he." Tempted by your iceberg beauty? ”

He Mo glanced at her arrogantly: "Turnip greens have their own loves, I think the one you like is just an embroidered pillow." ”

"Hey, you're ······"

At this time, Hong Qifeng came over at this time, and the conversation between the two was terminated.

"Let's go over now," Hong Qifeng said to He Mo, "It's dozens of kilometers, don't drive, I'll let Xiao Liu drive a car to pick you up." ”

"Hmm." He Mo nodded.

He Mo, Ding Meng and Liu Haoran were in a car, and Hong Qifeng took Li Yunbai in a car, and set off towards the North Shore Garden at the same time.

It was almost three o'clock in the afternoon when we arrived at our destination.

The group got out of the car and entered Cao Ying's house, and after the introduction, Cao Ying was immediately grateful, and hurriedly took Ding Meng to the room to see Xinxin's situation.

The rest of the people sat down in the living room.

He Mo took out a piece of material, handed it to Hong Qifeng and said, "This is the specific test report of the two ropes, you can take a look." ”

Hong Qifeng took the material and said, "It's better for you to explain it to us more directly." ”

He Mo did not shirk, and said directly: "Let's talk about the rope first, these two kinds of ropes are polypropylene three-strand flat wire rope, which has the advantages of high elasticity and high toughness, high tensile strength, soft and light weight, friction resistance, etc., and is widely used in modern industry, fishery, ports, etc. ”

"Two ropes of the same material?" Li Yunbai asked.

"Yes, we have tested it in the laboratory with the most advanced spectrometer, the color is white, all are three strands crossed braided, the rope diameter is also 28 millimeters, and the detection of isotopes is almost the same." He Mo replied.

"Can you say that the rope on Han Tongyue's corpse is from the factory for more than one year?" Hong Qifeng asked.

"Yes. It's just that it came out of the factory, or it was retailed outside, so I don't know. ”

"What about the knots in the ropes?" Hong Qifeng asked again.

"That's exactly what I'm saying, these two knots are not the same."

"At first glance, I don't think there's much difference in the photos." Hong Qifeng took out the two photos in the materials and compared them with each other.

"The rope that Li Yunbai brought back, the knot on it is a standard tie-down knot, this kind of knot is very easy to tie, and it can be used quickly, and it is a knot that is easy for people on ordinary fishing boats."

He Mo said, took out a rope with the thickness of a shoelace, and tied a tie knot in three or two strokes.

Liu Haoran saw He Mo's skillful technique on the side, and couldn't help but admire: "Director He, how come you know everything, you know everything?" ”

He Mo glanced at him and said slightly: "You read more books and check more information, you can do it." ”

Hong Qifeng took He Mo's mini tie knot and asked, "Then, what about the other one?" ”

He Mo said: "Another rope tied to the neck of the deceased, but the knot is more complicated, we thought it was a fisherman's knot before, but in fact, there is a difference. ”

"What's the difference?" Hong Qifeng asked.

"To put it simply, this knot is a combination of the fish hook knot in the fisherman's knot, as well as the knot we commonly use to weigh the human knot, a mixed knot method of the two."

"Is it a fisherman's knot or a fishhook knot?" Liu Haoran was confused.

"In the past, rope was the most widely used tool on fishing boats, and its role on fishing boats was indispensable." He Mo explained: "As a result, there are many ways to tie knots, and according to incomplete statistics, there are more than 100 types of knots on river and sea boats. ”

"So many?" Liu Haoran and Li Yunbai sighed at the same time.

"Well, there are more than seventy of them that are still in use." He Mo nodded and continued: "Because these knots are commonly used by fishermen or fishing boats, they are collectively called fishermen's knots. ”

"I see. So what's going on with this fish hook? Hong Qifeng asked.

"As the name suggests, a hook knot is a knot that is used to tie a hook when fishing." He Mo took out his mobile phone and found a photo and handed it to Hong Qifeng.

Li Yunbai and Liu Haoran also leaned over to look at the photo on their phones, which was a photo of a magnified fishhook with a fishing line tied to it.

He Mo continued: "Generally speaking, this method is to tie the hook with a very thin fishing line. Because the hook is smooth, this knot is demanding. ”

"And what did you just say about the knot?"

"You also saw the fish hook knot in the photo, which requires many loops of the rope end, which is generally suitable for very thin fishing lines, but the rope around the neck of the deceased is as thick as 28 millimeters."

"So it can't wrap around a lot?" Hong Qifeng speculated.

"Yes, so in the end, in the place where the knot is handled, this knot uses our usual weighing knot, and this knot is usually tied by us." He Mo said, took out another rope and tied a knot.

After tying this knot, he showed it to Hong Qifeng and the three of them before untying it, and then said: "But these two knots are fused together, but they are not very easy to beat, and I have practiced for a long time." ”

As he spoke, he began to tie the knot again with the rope that had just been untied, and it took nearly a minute or so to tie a knot.

She picked it up and looked at it herself, and felt that there was no problem, so she handed it to Hong Qifeng.

Hong Qifeng took it and compared it with the fish hook that He Mo had hit just now.

Indeed, but it is actually difficult to distinguish from the appearance, because once the knot of the rope is tightened, there will be many inner circle ropes that are blocked by the rope of the outermost circle, and it is difficult to judge the specific winding method of the knot if you don't look carefully.

But if you look closely, the treatment of these two knots is different from the direction of force, the winding sequence, and the treatment of the last end of the live head.

The knot He Mo tied for the second time would never be used by ordinary people, because this method is both responsible and difficult to untie.

When Hong Qifeng was studying the two knots, Cao Ying walked out of the room with Ding Meng and Cao Xinxin.

Cao Xinxin did not cling to Cao Ying like last time, but came out holding hands with Ding Meng.

Ding Meng smiled and said to He Mo: "Momo, don't worry, although this child's condition has been relatively long, it should be quite stable, I dare not say that it will be cured, but it will definitely be stabilized first and then slowly recuperate." ”

"That's great," He Mo said, standing up, "then it should be okay to live in my house, right?" ”

"There shouldn't be any problem, just according to what we said, I will also move to your house these days, on the one hand, to recuperate Xinxin's condition, and on the other hand, our sisters can get together well."

"I'm relieved if you say that, so I'll let someone send you over now, right?" He Mo has always paid attention to efficiency, so she said this, but after she finished speaking this time, she looked at Hong Qifeng.

Hong Qifeng immediately understood and said, "Xiao Liu, you go to drive, send Dr. Ding and Xinxin to Director He's house, and you can also purchase any daily necessities you need." ”

Liu Haoran agreed, and simply went to prepare the vehicle.

Ding Meng led Xinxin outside, and Xinxin turned her head to look at Cao Ying.

Although Cao Ying was a little reluctant, she still said, "Go ahead, it's okay, Sister Ding will take good care of you." ”

As he spoke, he waved goodbye to Shin Shin. Xinxin heard him say this, and also waved at him.

He Mo followed and sent it out, and told Liu Haoran the address by the way.

Before getting into the car, Ding Meng secretly whispered in He Mo's ear: "I think this handsome little guy who sent us back quite meets my standards." ”

"Scumbag." He Mo glanced at her and said, "Don't you have a boyfriend?" ”

Ding Meng smiled mischievously and said, "Fresh and tender grass, who doesn't like it?" ”

After speaking, he turned around and got into the car, leaving He Mo with a helpless face.

After sending Ding Meng and Xinxin away, He Mo returned to the room and saw Hong Qifeng holding two knots to show Cao Ying.

Seeing He Mo come in, Hong Qifeng explained: "Director He, I'll show Lao Cao these two kinds of ropes, I also told you about his lover's situation back then, I wonder if he can see the difference." ”

Cao Ying shook her head and said, "I only saw photographic evidence back then, but I didn't see actual evidence. ”

When Hong Qifeng heard him say this, he handed him the two photos just now and said, "Look at the rope of these two photos, which one is more consistent." ”

Cao Ying took the photo and looked at it seriously.

After looking at it for a long time, he firmly handed out one of the photos and said, "This one! This one must be the same as the rope that hanged Qiu Feng back then! ”

Hong Qifeng and He Mo leaned over their faces to check together.

It was the rope that was taken off Mrs. Han's neck!