Ai Chunguang was engrossed in "molding":

First, carefully clean up the floating soil and debris near the ditch wall, and select relatively complete old shovel marks as the target for molding;

Then use wooden planks and floating soil to semi-surround the "spade marks" to determine the scope and size of the mold;

Later, a frame was made of caryophyllus branches and placed in a semi-encirclement;

Pour water into the basin, then put in the gypsum powder, stir while putting it, wait for the gypsum and water mixture to reach a viscous and unsolidified state, slowly pour into the envelope, until the spade marks are completely submerged;

At this point, the pouring process is over, and the next step is to wait patiently - the plaster solidifies, the planks are peeled off, and the floating soil is removed...

Wang Yijun poured a spade mark and a pickaxe mark, told Xiao Ai to pay attention to the changes in the model, wash his hands and wipe his sweat, and then walked to the contemplative old K—

"Teacher, I've been thinking about whether there is a connection between this case of burying corpses in the bamboo forest and the series of cases of dumping corpses in abandoned wells? Of course, I first think that Liu Yaping and Li Xuefen - the same person killed the place! On this point, the task force has reached a consensus - "Wang Yijun drank his saliva - continued:

"Is there a connection between the two places and -3 lives? For further development of detectives - it is so important! I think there is a connection, mainly based on the following points:

The victims are a group of people - young women who are single, whether they are at work, home, or relatives;

The process of committing the crime has links such as 'sexual assault, murder, and hiding the body', which is ruthless, reckless, and hides the body;

Although the old plum bamboo forest is far away from the pass of Sichengling, for a perpetrator who is familiar with the topography and personnel distribution in this area, the overall 'general environment' is consistent..."

"What you call the 'first two' analyses – which I agree with, but not specific – is that the types are similar, and the 'details' are not consistent enough?

There is an obvious 'question' in the third one, since the time of the murder of the bamboo forest white bones, between Yaping and Fenzi, why didn't the murderer throw 'her' into the waste well? Rather, it took time and effort to make a pit and bury it? Old K first raised and then suppressed - take a deep puff of cigarette:

He was questioning his disciples, and he was also introspecting himself - the case was "really" complicated, and there were many questions? Any conclusion about the direction of the detective and the scope of the investigation - to be made, must be based on reasonable, sufficient, and not half - out of the scene, subjective assumptions?!

There are two direct and bad consequences of being unscrupulous and open-mouthed—

First, the fighters were delayed, the detectives were led astray, and even the case could not be solved in the end; The second is that his professional reputation is greatly reduced, which may jeopardize the credibility of technical people in the detective world...

"The key is the origin of the white bones of the bamboo forest - unknown so far? If it is found out that she is also in the missing place 'near the mountain pass', but she is buried in Laomei Mountain, it really does not conform to the behavior of the 'murderer'? !

If she was 'killed' in the direction of the Xuandong Railway, then - buried in this bamboo forest - also makes sense?! After all, the first site is too far from the 'abandoned well' - possibly limited by physical strength? Or maybe it's afraid that the route is too long - too risky? Wang Yijun pondered:

He suddenly felt that he was very impetuous, for the "3.2, 3.9" case-collusion analysis, not only relied on the scene inquest, the autopsy, but also combined with a large number of detective visits, only to come to the "same *** do" tendency opinion!?

And the detective work of the "3.16" case has just begun, isn't it even unclear who the soul is - who is the surname - ...

"Xiao Wang, don't worry. The scene can't solve all the problems of the case, and it must be combined with the detective's visit in order to conduct a more comprehensive and accurate analysis of the case, find valuable clues, and find out the truth-" Lao K said earnestly:

"If you think about it carefully, what 'what' investigation work is still to be done at the scene of the three murders?"

"......" Wang Yijun was stunned - thinking about the teacher's earnest teachings and "tips"?

"Teacher, I think the 'knots' on the corpse are a big problem?" Ai Chunguang didn't know when he came to him, and while taking out the survey bag, he said:

"I've got 3 victims drop autopsy photos-"

"That's what you're talking about with the 'forensic doctor'?! Ai - put it away? Wang Yijun reminded Chunguang in an accentuated tone:

He had already thought of this unsolved mystery, but he didn't expect Xiao Ai to shake it out "now"?

"It's sunny here, and my hands are full of sweat—let's go back and see...," said the old K. gently.

"Smack-" A transparent plastic bag fell to the ground!

"Kai, Yaping's drop key is 'Xiao Ai' found that the drop hasn't done the 'lock picking experiment' yet?" Xu Jin interjected - hurriedly helped the little fellow - picked up the physical evidence bag containing the keychain.

"......" Chunguang took the bag - muffled and silent:

He would have regretted it - he took the liberty of proposing the "knot"; Now this "experiment" that should have been done a long time ago - but has not been done for a long time has "exploded" on the spot by non-professional fellows ?!

He felt his head "buzzing"—a big change—

"I'll see-look-" Old K's eyes lit up and he said:

This physical evidence is packaged - it will not be contaminated by sweat!

"......" Wang Yijun sweated profusely: I don't know if it's a hot land? Or is it a place? Or both??

Xiao Ai and Xu Suo today - what's going on? It's all "which pot is not opened and which pot is not mentioned"? "Single" flaws - talk?

"Kai, list a keychain - Liu Yalin has recognized. Xue is - his sister 'Yaping' drops! Cheng Yong helped explain: He is familiar with the detective's visit, inquiry, and identification.

Ai Chunguang wiped the beads of sweat from his cheeks - shook them off, gave a detailed account of the discovery and use of the keychain, and finally reviewed:

"After ruling out the suspicion of No. 3 Zhou Xiaolindi, I should ask Master Huang to identify the place in time, and if the conditions permit, do a lock picking experiment - it is best to verify it?!"

After all, when Liu Yaping disappeared, his younger brother Yalin was still young. One more piece of identification - more secure? - 'This thing' hasn't been done yet, blame me - not active..."

When Xu Jin heard this, he pinched his chin, looked at Chunguang and thought:

It seems that I helped the little fellow "upright"? I wanted the detective to see - his ability to find the keychain, but he didn't want to "expose" him - he didn't work well!?

"Xiao Ai - isn't this a slap in the face? I exonerated him, but he said - not enough?! Is there really something wrong? Cheng Yong thought stupidly: took out a soft wire pole, and it was already in his pocket - kneaded and shaped!

"Teacher, the lock-picking experiment - I should 'stare at' the ground, it's my fault-" Wang Yijun was quite embarrassed:

He participated in the war on behalf of the technical detectives of the "City Bureau", and repeatedly made mistakes in the on-site investigation and the inspection of traces and physical evidence - is it difficult to escape the blame?!

"You have done a good job, there are some flaws or unexpected places, this is - normal, this is also the value of me and Wang Lao coming to Tongxi!

Regardless of department, profession, or level, you can ask the end on one question - breaking the casserole, this tenacity - good, screwing together like this - it's good! Lao K happily "cheered" a group of young people, and then proposed:

"It's still early, let's go find - Master Huang?"