The fingerprints left at the scene, Jinshan identified three fingerprints, and the three fingerprints were from different people.

(1) The trace examination department is a section of the criminal police department, which usually identifies the substances left at the scene, fingerprints, shoe prints, etc., and can judge the age through fingerprints.

There are sweat glands in the skin of the fingers, and sweat transports the waste of human metabolism to the sweat pores through the sweat gland ducts, and then excretes it from the body. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info On the fingers, the sweat pores are distributed on the raised mastoid line, one after the other very densely. The small furrow has no sweat pores, does not secrete any substance, the secretion is all on this line, when you touch an object, the place that touches the mastoid line will leave sweat, and then leave a fingerprint pattern. The so-called fingerprint leakage lifestyle is actually because sweat leaks your lifestyle. For example, if you often eat salty food during this time, the sodium chloride content in your sweat will be high. This can be a reflection of your personal eating habits. However, the amount of components in sweat is very small, so it is identified by special instruments. It is also said that the change of fingerprints is related to his family genetics and living environment. Someone has done a special survey, and the amount of sweat secretion and substances of people in different regions are different, for example, people in the west have higher salt in sweat than people in the south, so you can also judge the area where people live. The composition of human sweat is the same. 98% is water, and the rest is some organic substances, such as amino acids, urea, etc., and some inorganic substances, such as some metal cations, anions, etc., most of which are related to people's diet, which are the products of normal metabolism of the human body in normal life. If drugs and selenium can also remain in the sweat glands of the fingerprint, it can naturally become one of the information for fingerprint identification with the sweat through the sweat pores. Identity cannot be disguised by skin grafting or destruction of the dermis. A person's fingerprint remains unchanged for life, and even if the skin is grafted or damaged, it cannot hide the identity information of the individual. The particularity of a person's fingerprint, such as the shape of the grain, the combination of lines, the details of the features, the specific shape and its combination, do not undergo qualitative changes under normal circumstances. On the body, the specificity of fingerprint skin does not change during normal metabolism. Even after death, in the absence of corrosion of the dermis, the fingerprint retains its peculiarities. Only when there is a trauma, lesion, etc., the part below the dermis will change. But after the wound heals, the formation of new fingerprint patterns is also constant for life, because according to the original version of the gene, it will be replicated invariably. ①

(1) From Professor Luo Yaping (1)

Find out from the fingerprint comparison in Jinshan.

A's fingerprints are of the deceased.

B's fingerprint is that of the suspect, and from the fingerprint, B is identified as a female fingerprint who is about 20 to 23 years old.

C's fingerprint is suspected to be a bloody fingerprint, and C's age is about 33 to 36 years old from the fingerprint, and the male fingerprint is more certain that C is likely to be the murderer.

The comparison of the shoe print corresponds to C, too.

"The deceased's mother, X Hong, was clamoring to see her son, and she couldn't stop her." Jin Shan looked at the woman and said, the woman had always wanted to know what her son was doing now, and whether the murderer had been found.

I just happened to have something to ask him. Ace glanced at the woman and spoke.

"Comrade policeman, what about my son? I want to see my son! The woman named X Hong pinched the shoulders of the ace with both hands, trembling and crying.

"People can't be resurrected after death, you have to mourn, in order to solve the case as soon as possible, you have to cooperate with us, and I have several very important questions to ask you." Ace said to X Hong.

Xhong looked at the ace blankly, and with tears in her eyes, she nodded vigorously. "Comrade policeman, I cooperate with you."

Ace looked at the heartbroken X Hong, and felt a little uncomfortable, the white-haired person sent the black-haired person, and the ace was also very sympathetic to her and comforted her: "Things have happened, don't be too sad, it's important to solve the case." ”

X-red glanced at the ace gratefully.

"Comrade policeman, you have to help me catch the murderer, since the god killer has done it to my son, I will not be able to spare him if I catch him."

"Your name is X Hong, right, it's the mother of the deceased, and it's also the case you reported." Ace asked.

"Yes." Xhong nodded and said.

"When did you find out your son was dead?" After the ace finished speaking, he took out the pen paper and prepared to record.

"I went to see my son in the morning, and as soon as I entered the door, I saw him being hung on it." X Hong wiped a handful of tears from the corners of his eyes and said.

"Your son was killed in the early hours of last night, didn't you live with him?" Ace said with a sigh.

"What? My son was fine when I left, how could he ...... Woo! ......" X Hong held his head in his hands and cried bitterly.

"The villa was given to my son alone, but we didn't live with him ourselves."

Ace stopped his pen and looked at her quietly as he comforted. "We understand your feelings very well, but you still have to cooperate with us and catch the murderer as soon as possible."

"I see, comrade policeman." X Red replied.

Xiaohong came back to her senses and continued to answer the trump card. "We bought a villa for our son alone, because we love him, I suffered a lot when I was young, and now I can't bear to let my son suffer with us, as long as it is what my son wants, we will give him a car, money, and a house to satisfy him one by one, as for who killed him, it was because I liked my son's money."

Ace put down his pen and sighed. "This is pampering, not loving and loving your son, this is pushing your son into the fire pit."

Jin Shan looked at the trump card and found no clues on the deceased's parents. "What to do."

Ace said with the transcript in his hand. "Since you didn't ask anything, it's up to you to take a clue."

Jin Shan analyzed. "Vendetta, or, robbery and murder, my investigation of nearby surveillance has no effect at all, and there are no suspicious clues."

Ace said proudly. "It's good that I kept a hand, I guess they'll be back soon?"

Jin Shan didn't have anything to say when he heard this, he knew that the trump card had sent someone to investigate the case, and it was of course best to find clues. "Where did you check?"

Ace said seriously. "I sent the 009 number to investigate the deceased's social relations before his death."

Jin Shan asked the ace how to check next. "Now what are we going to do."

Ace asked Jinshan. "How's the fingerprint result?"

Jin Shan replied trump card. "Soon it will be available."

Ace continued. "We need to solve this case as soon as possible, and File 5 is the major case we want to investigate."

Jin Shan said. "If nothing else, this case will be solved tomorrow."

The reason why Jin Shan has so much confidence is because he left fingerprints at the scene, and as long as the suspect is found, the case can be solved.