Chapter 295

"I received the news at one o'clock, arrived in less than 2 o'clock, and then measured the rectal temperature. 34.5 degrees."

Ye Tianhe didn't talk nonsense, and directly took out the data measured when he arrived.

Death time identification, to get a rough conclusion, is relatively easy, but to get an accurate conclusion, especially a relatively precise conclusion, is extremely difficult.

Just the rectal temperature alone has very complex content in it. In 1984, the ministry once organized a body temperature research group to conduct research on the relationship between death time and rectal temperature data of 581 bodies at 0 to 30 degrees Celsius, and finally derived 27 ternary regression equations.

Many subsequent body temperature studies in the country are actually based on this one, because it is really too difficult for people later to get 500 bodies. If there really were so many bodies used for rectal temperature research, it would be equivalent to Sun Wukong immobilizing the Seven Fairies and stealing a peach.

Saying is saying, there are not many people who can really remember 27 ternary regression equations. Everyone checks them when they use them.

Furthermore, most forensic doctors actually use a simplified version of the regression equation. Some are too lazy to use the regression equation and directly apply it by experience, such as dropping one degree per hour, or dropping 0.8 degrees; those who are particular will divide the ambient temperature, and that's about it.

Therefore, when Ye Tianhe found that Jiang Yuan was very serious and confident, he didn't argue anymore and directly gave the data: if you can calculate it, you calculate it.

However, Jiang Yuan just said "En" and said: "Rectal temperature is not decisive either."

Ye Tianhe only then remembered that Jiang Yuan didn't even measure the rectal temperature when he came in.

Didn't measure the rectal temperature, and you want to play this kind of precise death time with me?

Ye Tianhe just remembered Yu Wenshu and didn't want to be the man who stuck his foot out.

But Ye Tianhe also had a temper and said directly: "Then let's measure the liver temperature."

Liver temperature is much more accurate than rectal temperature, but liver temperature is destructive; you have to make an opening in the waist, and the body surface will not be so complete.

According to domestic habits, in this situation, it is often necessary to explain to the family. In addition, for this kind of invasive operation, forensic doctors also tend to return to the autopsy room to do it; as such, the immediacy is not as good as rectal temperature. Therefore, unless it is very necessary, everyone tends to measure rectal temperature; generally speaking, it is enough.

As for now, there is a divergence in time, so Ye Tianhe didn't dwell on it and directly requested to measure the liver temperature.

Wan Baoming was a bit conflicted, coughed twice, and said: "Then I'll discuss it with Captain Ma."

Captain Ma is the captain of the Second Detachment of the Criminal Investigation Detachment. After confirming it was a murder case, Captain Ma immediately rushed over. But because the deceased's husband was the biggest suspect, Captain Ma didn't show up immediately; everyone still acted according to the murderer's script, pretending it was a suicide case for examination. Wan Baoming's point of conflict is also here: if you want to find the husband to ask about measuring liver temperature, it is very easy to alert the other party. This decision must be decided by Captain Ma, who is in charge of the scene.

Wan Baoming made a phone call, and in less than two minutes, Ma Jiyang, who had changed his clothes, walked in.

"I heard there's a divergence in time?" Ma Jiyang is a somewhat sturdy man with long legs, and his police trousers were still washed clean, which is to say he bullied the victim's family for not understanding; otherwise, one could tell at a glance that his state was that of having a virtuous wife at home, or he himself was the virtuous wife type, very unlike a grassroots police officer.

Wan Baoming rushed to say: "The time difference is not much, just an hour, but according to Jiang Yuan's judgment, the victim's husband is excluded."

"That's not necessarily excluded." Ma Jiyang thought cautiously and quickly, and asked: "The deceased's husband came back at 11:00 and nearly 12:00; the elevator camera filmed it. Jiang Yuan, what time did you judge the death time to be?"

"10:15." Jiang Yuan said.

"So accurate?" Ma Jiyang looked at Jiang Yuan. His Criminal Investigation Second Detachment often does homicide cases; in fact, among the cold case homicides Jiang Yuan did before, there were ones he handled.

The current case he failed to solve back then was solved by Jiang Yuan in a cold case state, and it was solved very beautifully; Ma Jiyang could be said to be full of admiration.

Therefore, seeing Jiang Yuan this time, Ma Jiyang instinctively gave him more trust value.

But Jiang Yuan directly reported an accurate number, which still made Ma Jiyang a bit confused.

Jiang Yuan said "En". What to say, anyway, lv6 is just that awesome; for this kind of homicide case within 6 hours, he can directly give an accurate time of death.

Ma Jiyang didn't wait for an explanation, and thought about it, forget it, what can I do if I hear the explanation?

Out of politeness, Ma Jiyang looked at Ye Tianhe and instead said warmly: "Wu Wu Fa Yi Ye, what is your analysis?"

"11:00 to 12:00." Ye Tianhe didn't say 10:15 anymore.

The rectal temperature he measured was placed there, and the state of rigor mortis also met the time limit; if another normal forensic doctor came over, it should be about the same conclusion.

Ma Jiyang said "Oh" and said: "Then it's actually only a 45-minute difference. As for whether the deceased's husband therefore has an alibi... the elevator filmed him coming back at 11:00, and it can't deny he came back at 10:00, or came back again at 11:00."

Wan Baoming reminded: "The time the deceased's husband left the unit can be asked more carefully."

"En, if he really faked it, couldn't the unit's clock-in time also be faked?" Ma Jiyang said, but his expression was much heavier. In a blink of an eye, Ma Jiyang smiled again and said: "By the way, you said you want to measure liver temperature?"

"Let's measure the liver temperature to clarify." Wan Baoming explained on his behalf. Ma Jiyang said "En": "Measure it, we're already here."

"Do you want to tell the deceased's husband?"

"Don't tell him. You measure it directly; this body definitely has to be taken back, no need to cause extra trouble."

Ma Jiyang made the decision, so Ye Tianhe and others didn't have to be so conflicted. The liver temperature needle was taken out, poked in, and measured.

"32.1 degrees." Ye Tianhe read the number, calculated silently, and determined that it supported his judgment, so he asked Jiang Yuan: "Wu Wu Fa Yi Jiang, will you measure it?"

"No need, this shows that the body temperature is disordered overall." Jiang Yuan gave an explanation.

Ye Tianhe was speechless and said: "You can't say the body temperature is disordered just because the liver temperature doesn't meet expectations; this... you have to provide evidence."

"Body temperature is only one of the criteria for judging the time of death. In fact, it is also the easiest to be interfered with."

Jiang Yuan said it gently, and then added: "The body's super-vital reaction, such as the muscle's super-vital reaction, as well as this change in the cornea, and rigor mortis, pay attention to the wrinkling of the lips..."

Jiang Yuan stopped here and added: "When doing the autopsy later, look at the digestion of stomach contents, and do a toxicology by the way..."

Some drugs will affect the change of body temperature, common ones such as fever-reducing drugs.

Ye Tianhe saw that Jiang Yuan was so certain, he had to readjust his mood and said: "Okay, let's look at it during the autopsy."

Jiang Yuan's purpose was not to convince him; having said this, he didn't talk nonsense, just stood up and observed the scene.

Ma Jiyang asked: "What are you looking for?"

Jiang Yuan said: "Actually, judging the time of death based on body temperature, the gap is so large, there is still a problem."

"How to say?"

"There are many reasons that determine body temperature. But generally speaking, it is mainly ambient temperature, clothing or coverings, the carrier of the body, the ventilation situation of the environment, humidity, gender, age, body type, cause of death, drugs..."

"Jiang Yuan said 10 types in one breath, and then said: "In this, the latter few items are not easy to change, what is easy to change is the first few types." Ma Jiyang listened and closed his eyes, feeling the environment of the crime scene."

Jiang Yuan was pondering and said: "If we consider it from the aspect of change, the humidity in the bathroom is relatively high, there is an exhaust fan for ventilation, there is a fresh air system here, and the body is hanging..."

Ma Jiyang opened his eyes, the heavy pressure returned instantly, and said: "The relationship between the deceased and her husband is not very good, and they have been arguing recently. In addition, the economic problems of the two are also relatively prominent, and the deceased has insurance... I'll go confirm this

guy's itinerary."

Psychologically, Ma Jiyang still felt that the husband was the most suspicious.

However, Jiang Yuan's performance these days made him willing to investigate more.

--Proceed to view