Luminol, also known as luminous ammonia, fluoresces blue-green when it encounters blood when examining blood stains. Even blood that is invisible to the naked eye can be detected even if it is only one part per million, so even if you wipe the scene, it will be measured in this way if it looks like nothing abnormal to the naked eye.

This strange house, if it weren't for the second master and Chen Meng who entered it by mistake, and ordinary people would not have found anything abnormal.

The room was cleaned, the doors and windows were wiped out.

But no matter how meticulous it is, it is difficult to erase all traces, and there is no way to hide it 100%.

When Chen Meng heard the second master say that there was a reaction, he was already enthusiastic, and the second master said something more exciting.

"In the master bedroom, we found hair, and in the room with only a wooden bed, we found bloody shoe prints."

No matter how clean the blood is, no matter how long time passes, even if it is ten years or even more, it will be shown under the effect of luminol, whether it is hair, or shoe prints, it will become the key evidence.

What is the wooden bed in the second bedroom used for, it is too cruel, and Chen Meng is unwilling to make up for it.

Chen Meng shook his fist excitedly, "I'm ×, it's so special!" ”

The second master pretended not to hear, because today's progress was too exciting.

The hair has been sent for examination, and the shoe print has become a very crucial evidence, but the second master went on to say something that is not very optimistic.

"It's just that the shoe prints found are relatively small, and they are not quite the same as we deduced."

"How old?"

"There are two shoe prints, one is size 36, and the other is only half, whether it is the same person, it needs to be tested in detail."

Adult men's feet are not so small.

"In such a situation, if the main culprit is likely to step on someone else's shoes? Has he really thought it through that he might leave footprints and change his shoes early? ”

Chen Meng shuddered a little when he thought of this.

How thoughtful and scary this is.

The second master shook his head.

"It shouldn't. If it is not the shoe print of the murdered child, it is the main culprit's. Judging from the situation in the house, it should have been in a hurry. ”

If the main culprit is really so meticulous that he should not have left the bedding, then there is enough evidence on it.

Chen Meng and the second master glanced at each other with a tacit understanding, Chen Meng swallowed her saliva, and she thought of her previous inference.

"Second brother... Did I say that I analyzed it before, and I once suspected that it was a woman? ”

The second master nodded.

Feet of size 36 may not appear on men's bodies, but when you think of the color of that bedding, and then think of this shoe size, the probability of a woman... There are still.

"Oh my God, is there really such a woman in this world?!" Chen Meng found it hard to believe what kind of person would be so cruel.

The proportion of female crimes in all cases is about 10%-20%, and there are more cases of emotional confusion and family disputes. It's incredible.

It does not fit the psychological characteristics of women.

Chen Meng slapped his thoughts back again, "Maybe it's a little sissy man." ”

"We have to check the specific details carefully, but as long as we can find more evidence to support it, then..." The second master looked at Chen Meng hopefully, and gently stroked her cheek with his hand.

"Your grievances will be cleared."

"Who is the owner of this house? What the hell are you living in? Chen Meng suddenly thought of this, this problem is solved, so isn't everything done?