Inside the appraisal room!

As Shen Ting issued one instruction after another, the surprise on Director Ma's face quickly turned into astonishment.

He has completely confirmed that Shen Ting's proficiency in pollen is definitely not ordinary.

There are some knowledge points that even he doesn't know.

Director Ma even felt that many of the botanical experts he had worked with before were not as professional as Shen Ting in the field of pollen.

"This doesn't have to be so complicated. You can do it this way, and then this way. It's much simpler."

“It seems so!

Brother Shen, where did you learn this technique? "

Director Ma was shocked beyond words.

Shen Ting smiled without saying anything, thinking silently:

"The surface of this incomplete pollen has large, tumor-like protrusions.

Judging from the size, shape and distribution of the nodules, they should be azalea pollen.

Most of the rhododendrons in Chaoyang are in parks or scenic spots.

Plus the other spores and pollen in the pollen mass...

It should come from here!"

Shen Ting took out his mobile phone and circled a color circle on the map of southern Chaoyang.

As you can see, dozens of circles of different colors and sizes have been circled on this picture.

These are the source areas of the corresponding pollen masses.

Although spores and pollen are small in size, they actually have many surface features.

First of all, the shapes are different. The most common ones are the spherical shape of rice pollen, the prolate spherical shape of willow, as well as oblate spherical, triangular, quadrilateral and other shapes.

Pollen size also varies.

Moreover, the pollen of different plants varies significantly in size.

The diameter of forget-me-not pollen is only about 5 microns.

The diameter of pumpkin pollen can reach 200 microns.

There are also unique patterns on the surface of the pollen.

Like corn pollen, the surface is covered with tiny granular, rough protrusions.

Lily pollen has obvious striped patterns on its surface, which are arranged in various forms, such as parallel, cross or spiral.

The rest include patterns in different forms such as reticular, lumpy, and smooth.

besides!

There are differences in the number, shape, position of germination pores, as well as the color and composition of pollen.

These are all the basis for identifying spores and pollen.

…

And now!

As the appraisal progressed, the police officers outside the appraisal room were all surprised.

What's going on?

Director Ma, why did you look so skeptical from the beginning, as if you were a primary school student being forced to study?

So quickly, his expression turned into one of shock, even admiration.

What’s even more outrageous is!

He really was like a student asking questions, constantly asking questions to Shen Ting.

"Oh my god, it seems that Chen Ting is really proficient in spore and pollen identification?"

"Director Ma is actually asking him for advice?"

"Even the experts who came to help before didn't see Director Ma being so respectful?"

"So, Chen Ting's level of palynological identification might be even better than that of ordinary experts?"

Zheng Yuanqiao, who was standing at the front, was the most surprised.

He agreed to Shen Ting's appraisal, more as a last resort, and did not hold much hope.

After all, pollen is a very specialized knowledge.

With so much pollen and so many spores, it would be impossible to know enough plants and fungi without a lot of study.

But judging by the state in the identification room, Shen Ting seems to be really proficient in palynology!

Director Ma seemed to be impressed.

Amidst everyone's surprise and confusion, the pollen identification was carried out quickly.

But this is a very delicate job after all.

Many of the pollen identified this time were incomplete or corrupt, so it naturally took longer.

After nearly two hours, Director Ma's hands were numb, and Shen Ting finally stopped.

On his phone, the map of southern Chaoyang was circled with dozens of circles of different colors.

Shen Ting roughly analyzed it, sliding his fingers between the different color circles to connect them all.

Taking his finger off the phone screen, Shen Ting reduced the size of the screen and fixed his gaze directly on a place on the map.

"interesting!"

He said hello to Director Ma, turned and left the appraisal room, and looked at everyone with a smile:

"Good news, the identification results are out!"

Shen Ting showed the map on his phone to everyone.

"Done?"

“It actually worked?”

"Have you determined the Hummer's trajectory?"

"This is incredible! After twelve years, you can still confirm it?"

The police officers all crowded forward, their eyes wide open, looking at the map on their phones curiously.

Then, curiosity quickly turned into confusion.

They can only see that the lines on the map may be the trajectory of the car?

As for the color circle, is it the source area of ​​the pollen mass?

Xiong Beibei looked at it for a while and asked doubtfully:

"Chen Ting, the colored blocks on the map are the source of the pollen mass, right?

But for two adjacent color blocks, how do we determine which one the Hummer passed first?

And this color block almost completely covers the map. How can we determine the Hummer's trajectory?"

“This is easy!”

Chen Ting said: “These blocks of color look scattered, but if you look closely, they are basically arranged along roads without surveillance.

Simply put, the trajectory is basically along the road, which is relatively easy to determine.

As for which direction you are heading from or to, it is actually not that important."

Xu Xinyi was also puzzled:

“Chen Ting, I see a lot of color blocks on the map, and there are even multiple colors overlapping.

This means that the Hummer has passed through this area many times!

Especially some fork areas with multiple driving directions.

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