Seeing this, Jiang Si explained: "It's the light source."

"Light?"

"Yes, the weather in Beijing was sunny on the day of the incident."

"When the light is side-lit, the bridge of the nose will be elongated and the eye sockets will be deeper than usual."

As she spoke, Jiang Si opened the first portrait.

"This is the old man's perspective of the suspect. It can be clearly seen from here that the suspect's nostrils are pointing sideways."

"His columella is not very obvious, and the bridge of the nose is not visible, so this person must have a flat nose."

Jiang Si not only knew that this person had a flat nose, but she also calculated the nasofrontal angle and the width of the base of the nose, and finally made a surprising discovery.

This person's nose-frontal angle is as high as 146 degrees!

Considering that there was an obvious bulge in the lower part of the man's columella, Jiang Si suspected that the man's nose bridge might have suffered a serious fracture before.

There are not many hospitals in Beijing that can perform this operation.

If we continue along this line of inquiry, we should find something.

As for why she deliberately gave special treatment to her nose and lips, Jiang Si also gave her own explanation.

Unless most people have received professional training, they can only remember the most prominent features on other people's faces.

Especially those with garlic nose and thick lips.

As long as you have met the person, you will remember him.

Therefore, at this time, exaggerating the proportions appropriately will not only not affect other people's judgment, but will increase their memory points.

After hearing what Jiang Si said, Fourth Uncle Huo was instantly confused.

That’s right, don’t say you don’t know him.

Even among colleagues at work, if you ask someone what he or she looks like, not everyone may be able to tell you.

But if you ask who in the workplace has a flat nose, anyone can tell.

Thinking of this, Fourth Uncle Huo could no longer contain his excitement.

But what he didn't expect was that Jiang Si actually had another surprise for him!

It was only a rare moment for Jiang Si to find out that the public security system in this era used the five-sense database template.

They are all paper silhouettes, and there are very few types that can be combined.

Take the eyes for example, there are only four types of eyes in the template.

There are five types of noses.

There are also five types of mouths.

No wonder that on the day of the incident, after the two witnesses arrived at the police station, they just made a statement and went back.

It's useless to try.

Fortunately, we now have a feature portrait of the suspect, and the police also know that this person had undergone surgery on his nasal bone.

Therefore, as long as this person is still in Beijing, it is only a matter of time before he is caught.

But even if he was shot in the future, those dozens of lives that were bullied and killed could never be brought back.

Not to mention how many girls are indirectly affected by this.

In later lives, Jiang Si drew at least 8,000 detailed drawings of the human's facial features, and practiced for more than ten years in this life.

For her, drawing a complete set of facial features templates is not that difficult.

Of course, the reason why she wanted to recommend herself that day.

On the one hand, this case deeply touched her, and on the other hand, she did have some selfish motives.

Even though she hasn't started working yet, Jiang Si still has a very clear plan for the future.

First of all, she doesn't plan to take the college entrance examination.

It was 1968 now. When the college entrance examination was resumed, she would be already in her thirties, so it would not be appropriate for her to take the exam.

Therefore, Jiang Si prefers to seize the time in recent years to improve her resume, just as a way to accumulate points for herself in advance.

This way, when she returns to Beijing, she will have the opportunity to make her own choice.

But these are just her personal ideas, and Jiang Si has no idea whether the public security system will adopt them.

Fortunately, Fourth Uncle is a family member.

Jiang Si had nothing to worry about, so she just said whatever came to her mind.

Fourth Uncle Huo thought he had misheard and was stunned for a long time before he reacted.

"You mean, you can help us draw a set of 'five senses' library templates?"

Jiang Si hummed, "I just haven't had any recently, so I wanted to give it a try."

"After the painting is finished, you can take a look at it first. If it works well, then decide whether to change it or not."