After all, these bad people are Lu Yanqing's colleagues and it is difficult to excuse them, so Lu Yanqing took the wine jug and explained to a few people:

"You've all seen the black marks in this jug, right?"

"Yes, silver can test poison, what's so strange about that?"

A bad guy asked rhetorically, this seems to him to be normal, and anyone with a little common sense should know about it.

"It's not strange, but it's weird where it's darkened."

"Oh? What's a strange way? ”

These bad people are also very face-saving, just like a few compliments, so that Lu Yanqing will not give a dry explanation.

"You see, this flask only has a blackening mark on the low and wall of the jug, and if this poison is directly entered when the wine is filled, it should cause black marks to appear in the whole jug, not only at the point of the flask, as is the case now."

As soon as these words came out, the bad people suddenly realized.

"That means that this poison was put in later, is the murderer the maid Xiaocui who has been holding the wine jug."

These bad people can also be regarded as aura, if only this clue can indeed temporarily identify the maid Xiaocui as the murderer.

Seeing that these bad people looked eager to try to arrest the suspect, Lu Yanqing hurriedly spoke out to stop him: "Colleagues, don't worry, Xiaocui is not a murderer, listen to me first." ”

"Then you go on."

"This poison was not actually released later, but put in first."

As soon as these words came out, everyone present was stunned, "You...... What do you mean by this, is it not inconsistent? ”

"Your thinking is not clear at all, so let the leader explain it to us."

"Yes, let's let the boss explain." Another bad guy chimed in.

Just as Lu Yanqing was about to open his mouth to explain, Jin Houcheng suddenly spoke: "What Lu Yanqing just said was that he was directly poisoned when he was loading wine, so why can't he take it in during the wine loading time?" ”

Hearing this, these bad people showed doubts again, and Lu Yanqing just smiled lightly and continued to explain:

"Colleagues, do you see that there is only one black mark on the inner wall of the flask? And is it narrow at the top and wide at the bottom? ”

As he spoke, Lu Yanqing pointed the mouth of the wine bottle at the bad guys.

The bad guys looked at it a few times and nodded repeatedly, "That's right, there is indeed only one." ”

"What does that mean?" Lu Yanqing continued to ask.

"Hmm...... The note is that this mark was left by the last pour. ”

The time was too short for him to take all the circumstances into account, and one of the bad guys replied with a slight hesitation.

"That's right!" Lu Yanqing gave a thumbs up to this bad man, this person's reasoning ability is still very good, "This can only be left when the liquid mixed with crane top red in the wine pot is poured out, if it is not for it, it will definitely leave more than one trace on the inner wall of the wine jug, and the trace of the low pot will not be so shallow." ”

"At the same time, the traces left on the walls of the jug will only leave traces of narrowness at the top and width at the bottom when the liquid is poured out slowly, which means that the poison somehow appeared in the jug after the wine was almost finished."

Hearing this, everyone looked thoughtful, and continued to reason downward along the clues of Lu Yanqing:

"According to what you say, isn't the murderer still the maid Xiaocui? She was the only one who touched the flask, and only she could poison the wine when it was about to run out. ”

One of the bad guys reasoned that the others thought much the same way as him.

But just now, Lu Yanqing said that Xiaocui was not the murderer, which made them hesitate.

"It is true according to common sense, but how can this little cui ensure that the last poisonous wine is poured into his master? According to the dossier, Xiao Cui did not bring much wine, and it was only one cup per person. ”

"Normally, this first glass of wine should be poured to the host, then the guests, and then to his wife and children, so that this last glass of wine was not drunk by Zhu Hongming? But why was it really Lord Zhulu who died of poison? ”

"This ......"

As soon as these words came out, they immediately overturned the reasoning of the bad guys to the ground.

"How did you do that, you don't want to sell it?"

"yes, just tell us."

These bad people were eager to know the murderer's criminal methods, so they urged Lu Yanqing.

Before Lu Yanqing could speak, the bad guy named Xiaoliu answered first: "It's ice!" ”

"Ice?"

"That's right, it's ice, and only with ice can this modus operandi be realized." Xiao Liu affirmed.

In order not to be robbed of the limelight by this little six, Lu Yanqing hurriedly explained in detail:

"Wouldn't it be nice to add ice to the wine in the summer heat, and I think this ice should be stored in the basement by Lord Zhulu's servants in the winter, as long as it is stored properly, it will not melt even in the summer."

"And the murderer took advantage of Lord Zhulu's habit to seal the Heding Red in ice first, and then put it in a place where it was easier to reach, waiting for Lord Zhulu to return to his house and drink and die of poison."

"I see."

The bad people instantly realized that the indirect poisoning that Jin Houcheng said before actually meant this.

In this summer, it is indeed difficult for bad people to realize that the murderer can use ice to commit crimes, and the records of the case in the file are not detailed, so it is normal for bad people to find it difficult to solve this case.

"But ......"

Just when bad people began to think of the murderer, Lu Yanqing suddenly took a turn and immediately attracted everyone's attention.

"But...... The murderer's plan was a little awry, otherwise it would not have been possible to leave any traces in the bottle. ”

"Oh? What do you mean by that? The bad guy asked out loud.

Lu Yanqing didn't sell Guan Zi, and said directly: "If Song Yuanzhen hadn't mentioned the news of leaving tomorrow morning that day, the most people drank during the banquet would have been rice wine, not this treasured good wine." ”

"This treasured good wine is obviously much stronger than rice wine, and the stronger the wine, the easier it is to make the ice melt faster, which is completely unexpected by the murderer."

"Although the murderer finally poisoned Lord Zhulu with the help of his habit of chewing ice after drinking, the ice melted some in advance in this jug, which left traces in the jug."

Lu Yanqing's voice fell, and the bad people all showed a look of consternation, they didn't expect the murderer's modus operandi to be so meticulous, if he failed to leave traces in the wine jug, I'm afraid it would be difficult to deduce the murderer's modus operandi, this is obviously a long-term plan!

"Since the murderer is so familiar with Lord Zhulu's habits, it is very likely that he is from the Zhu Mansion; The order was sent down, and the interrogation and investigation of the palace was carried out with Confucianism, and the people who had left in recent days were all recovered. ”

The clues were already there, and Jin Houcheng naturally wanted to follow the clues to continue the in-depth investigation, so he got up and ordered a few people.

"It's the boss!"

After answering, several people scattered and began the investigation.

"Boss, since you want to use Confucianism to interrogate, then I'll also go and help."

Lu Yanqing wanted to go home early, so he could only solve the case as soon as possible, so he took the initiative to ask Yingdao.

"No need." Marquis of Jin said: "Yuxi Academy is far away, so you can go back first." ”

Hearing this, Lu Yanqing couldn't help but be slightly stunned, and then smiled in his heart.

"In that case, I'll take my leave."

Without being stunned any longer, Lu Yanqing left directly.

Looking at the back of Lu Yanqing's departure, Jin Houcheng stood in place thoughtfully......