"Okay!" Old Master Gao immediately instructed the senior manager to lead another dog, go to the kitchen to get a small piece of meat, roll it in the salt bar, dip it in the salt, and throw it to the dog for food.

The dog ate the piece of meat and after only a moment, he wailed and twitched and died.

Old Master Gao was so angry that his eyebrows stood up: "It turns out that he had arsenic in the salt jar! It turned out that this slut really did it! - Come on, hang up this slut! Let's see if she can do it?"

"I'm wronged! I've been with the old lady all day and have never been to the kitchen. How can I poison the salt jar?"

The thick and strong women were about to come in and tie people up again. Lu Jinping waved his hand and said, "No! You can't convince people by force! Old Master Gao, don't you want to find the real murderer with convincing heart? It's better for me to speak with facts."

Old Master Gao nodded and waved his hand to let the women out.

Lu Jinping said to Hanyu: "Are you sure you were wronged?"

"Yes, sir, I am really wronged!" Hanyu said with a pale face.

"So that is, the person who pours arsenic into a kitchen salt jar and then flicks his fingers into it, isn't you?"

"No! Absolutely not, I have been with my wife all the time."

"If it weren't for you, then there shouldn't be arsenic in your nails. So, I'll scan out the things in your nails and find a small animal to check if there is any arsenic. - Because the amount is very small, at least I'll find a poor little animal to test it."

After saying that, Lu Jinping asked the servant to bring an ear spoon and a piece of white paper, and carefully took out all the things moving in the gap in the middle finger of her right hand. Because the nails were long and they loved to clean them in time, there would inevitably be a lot of things left in the gap. If you scanned out from the inside, you could clearly see a small amount of white powder.

Seeing this, Old Master Gao stood up again with thick eyebrows, but Lu Jinping said just now that he wanted to do an animal experiment to see if it was arsenic, so he endured it.

Lu Jinping said to Mr. Gao: "What kind of small animals are there in your mansion? It's better to be mice or something."

"Of course there are rats in the house, but it's hard to catch them all at once. Well, there are ducks in the kitchen, okay?"

"Okay, go and catch a duckling, add a little rice and mix the powder into the rice for the ducklings to see what the result will be."

The servant quickly caught a duck that had just hatched and served a small amount of rice with soup in a bowl. Lu Jinping poured the things that had been swept from the maid's jade nail into the bowl, stirred, and placed them in front of the duck. The duck ate it rattledly.

After just a moment, the ducklings were drunk, shaking around and crying, and then softened on the ground, twitching for a few times, and did not move any more.

The maid Hanyu suddenly collapsed on the ground.

Old Master Gao was furious: "It's really you slut! The person who came, drag her out and beat her to death!"

The maid Hanyu's mother screamed, turned over and knelt down, crying and begging for mercy.

Lu Jinping waved his hand and said, "The old man should calm down for the time being. Although it was this maid who poisoned him, there must be a murderer behind the scenes!"

Old Master Gao was shocked and said, "That's right, say! Who instructed you?"

Hanyu crawled on the ground, just crying, shaking her head and not speaking.

Old Master Gao wanted to call him to hang up and beat him again, Lu Jinping waved his hand and said, "Let me ask." Lu Jinping asked Hanyu, "When did you poison it? How did you poison it?"

"Yes... when the old man and the others were coming back, everyone went to the door to wait. I secretly went to the kitchen to poison it. At that time, I hadn't started preparing lunch yet, so there was no one in the kitchen. I secretly poured a small bag of arsenic into a salt jar and stirred it with my fingers, so I couldn't tell if I mix it together..."

Lu Jinping pointed to the piece of paper placed on the coffee table and said, "Did you wrap it with this piece of paper?"

Hanyu glanced at it and nodded with a sob.

"Where did you buy your arsenic?"

"I bought it from..., from... Xue Langzhong Medicine Store..."

Lu Jinping said coldly: "You have to think clearly, I have to check it right. If Doctor Xue says that this is not the case, what should I do?"

Hanyu panicked, looked up at Lu Jinping, lowered her head and said, "I..., I can't remember it anymore. Maybe it didn't buy it from him."

Lu Jinping asked several times again, and Hanyu only said that he couldn't remember where he bought it.

Lu Jinping changed the topic again: "Then why do you poison the medicine jar?"

"Miss often scolds us, but I'm so angry that I poisoned her..."

"Have you ever poisoned the lady before?"

The maid Hanyu thought about it and nodded slowly: "I've voted."

"How did you poison it?"

"Well..., I secretly poisoned me when I delivered the food."

"You mean you delivered food to the inner house?"

"yes……"

"Is that so? Are you sure?" Lu Jinping asked coldly.

The maid, sniffled and lowered her head without saying a word.

Lu Jinping turned his head and told the senior manager to call the chef and the two chefs in charge of the inner house. He first asked the chef, "Are you responsible for the inner house meals in the past few months?"

"Yes, the young man has been in charge of food at home for many years. There has never been any trouble."

Old Master Gao interrupted, "Yes, he is my distant nephew, and he can still trust me."

Lu Jinping nodded and said, "Then let me ask you, have you cooked for the lady in the past few months, together or alone?"

"Everything was done together. Except for the lady who was sick and the third aunt occasionally came to cook and cook, they were all delivered by the young man."

"Who is responsible for delivering food?"

"It's them. They are the two cooks who are responsible for the inner house stove."

Old Master Gao said again: "These two cooks are also relatives and can trust them. They will not poison them."

Lu Jinping nodded again, pointed to the maid Hanyu, who was kneeling on the ground and asked the chef: "Have she been here when you cook?"

The chef smiled and shook his head: "I haven't been here before, the kitchen smoke is heavy. She is the maid next to her, who serves her. How could she come to a place like the kitchen? Hehe?"

Lu Jinping turned around and asked the two chefs: "You gave the food from the small chef in the inner house?"

"Yes."

"Do you send it directly to the dining table or will the maid in the inner house take over and transfer it?"

"We delivered it directly to the dining table."

"Have you not accepted the maids? For example, Han Yu?" Lu Jinping pointed to Han Yu, the kneeling maid on the ground.

The two cooks shook their heads in unison and said, "No, we delivered them directly to the dining table. The food was served before she accompanied the old lady to have dinner. She had never come to the dining room before."

The maid Han Yu, who was kneeling on the ground, began to tremble and sobbed softly.

Lu Jinping told the chef and the two cooks that they could go out. After they left, he asked Hanyu: "What are you going to explain now?"

Hanyu shook her head and said, "I remembered wrongly... I have never poisoned it before, I have been this time..."

"Did you hold a grudge against Miss and poison it? Or is someone else instructing me?"

"Yes..., I was the one who poisoned me because I held a grudge against Miss. No one instructed me..."

"Okay! We will find out the truth." Lu Jinping said to the senior manager, "Please call the old lady in, I have something to ask her."

Soon, Mrs. Gao was called in. As soon as she entered the room, she saw the crying maid Hanyu kneeling on the ground, a dead duck and a small bowl of rice soaked in soup. Her face turned pale. She bit her red lips gently and walked over. She said to Mr. Gao first: "Master!" and gave Lu Jinping a blessing: "Mr.!"

Lu Jinping said: "You said before that you have been in the house and have been with your maid Hanyu. You have never been to the kitchen, right?"

When he heard about this question, Mrs. Gao seemed to breathe a sigh of relief and nodded, "That's right. My maid Hanyu and I have been in the house all the time. We can testify to each other. The mother outside can also prove that I have never left the house. The master has asked one by one just now, proving this. - Why, is there any problem?"

"Tell you the truth. Just now, we found that poison and arsenic were poured into the salt jar that was specially cooked for the inner house in the kitchen. I called the maid and the woman beside you for questioning. It turned out that it was made by your personal maid Han Yu. She confessed that she poisoned the salt jar and was about to poison Miss Gao to death..."

"This slut, really deserves to be damned..."

"Wait!" Lu Jinping interrupted Mrs. Gao and looked at her with a hint of sarcasm, "Madam, why did I call your people to interrogate when I find that someone has arsenic in the salt jar? Don't you find it strange?"

Mrs. Gao was shocked and said, "I was about to ask you, why do you directly suspect me?"

"Because you are the real murderer behind the scenes that I have long locked in!"

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【PS:】Thanks to the following book friends for their rewards:
Chapter completed!