When everyone heard what Ma Xiaoguang said, they all looked at him expectantly.
"After the coffee beans are ground into powder, they need to be filtered before brewing. Lan An is a germophobe and likes to use disposable coffee filters to filter!" Ma Xiaoguang said to everyone.
"The spy poisoned the filter paper." Fatty immediately turned on the assist mode.
"But we didn't find poison on the coffee filters in Lan An's study?" Yang Bailin was still a little confused.
"It's very simple. Someone changed the filter paper. In other words, whoever has the opportunity to change the filter paper is the murderer! At least an accomplice." Ning Zhongping said with sudden realization.
"It seems that we have to re-examine the scene again." Ma Xiaoguang said, and as soon as he finished speaking, he found that his brothers were all looking at him with a smile.
"This is your police job..."
"Sir, this is all for the party and the country. Just work hard and your family will understand. We don't have the conditions to go!" the fat man persuaded with a smirk on his face.
"You are asking me to make a mistake!"
"You are now Master Feng, a rich man. It is normal to have a few girlfriends..."
Ning Zhongping had most of his doubts cleared up, and he was in a good mood, so he also joined in the fun.
"It's not impossible to go, but I can't go now...let's go tomorrow." Chief Ma said quietly.
As a newcomer to the Resources Committee, Young Master Feng (Ma Xiaoguang) still maintains his usual low-key style. Although he still has the task of meeting socialites today - ah no, re-surveying the site, he still comes to the office on time in the morning to go to work.
"Xiao Feng, did the police take you for questioning yesterday?"
Hu Minzhong, the unit chief, came over and asked with concern as soon as he got to work.
"No, I've been asking for a long time. I was in the hospital the day before yesterday and the day before yesterday, or at home... Besides, I don't know Deputy Chief Lan at all." Ma Xiaoguang shook his head and said.
"The police are handling cases. Isn't it like this? I've been asked for a long time." Hu Minzhong comforted Ma Xiaoguang.
After chatting for a while, everyone started moving bricks. Due to the sudden backlog of official documents these days, the five of us were very busy.
"Xiao Feng, there is a document here that needs to be copied to the Minerals Department. We are all confused here. Please do your hard work."
Qin Boda revealed half of his head among the pile of documents and said to Ma Xiaoguang.
"Okay, I don't like to sit for long periods of time, so I just want to move around."
Hearing this, Ma Xiaoguang got what he wanted. He was looking for an excuse to go to the Minerals Department to check it out. Now there is no need for an excuse, it is justifiable.
"The receipt must be signed by Section Chief Xie and returned to the office for filing."
Qin Boda is the old man in the office, and he is nagging about things to pay attention to.
Ma Xiaoguang was open-minded about his senior's advice. Although this old man didn't talk much, he was a good man and there was no need to let down others' good intentions.
Soon I came to the Minerals Department. The atmosphere here was far worse than that of the highway department. Because something had just happened, everyone looked not very good, and everyone had a long face.
"Get out! You don't need to clean here!"
What came out of the Minerals Section Chief's office was the roar of Chief Xie Fafa.
A cleaning foreman walked out with blood and resignedly stepped out.
In the messy office, Xie Fafa was stuffing something into the drawer, his face flushed and looking very ugly.
Ma Xiaoguang turned a blind eye to all this, passed by the cleaners who hurriedly exited, and walked straight into Section Chief Xie's office with the documents in hand.
"Chief Xie, there is a document here for you to sign." Ma Xiaoguang said respectfully.
Xie Fa saw that Ma Xiaoguang was jealous and wanted to scold him a few words, but when he saw Ma Xiaoguang's awe-inspiring expression and his well-dressed clothes, he suppressed the urge to scold him, picked up the pen, and signed his signature quickly. Daimyo.
After the matter was done, Ma Xiaoguang had no interest in staying in Xie Fafa's kennel-like office and quickly went back with the receipt.
"Is everything going well for Xiao Feng?"
Lin Zhengping asked with concern when he saw Ma Xiaoguang coming back so soon.
"Fortunately... Section Chief Xie seems to have a bad temper." Ma Xiaoguang said.
"Hey, that's a dog owner. He bites whoever he catches... He doesn't rely on his wife to get the upper hand." Lin Zhengping curled his lips disdainfully and said.
"He probably knelt on the washboard at home and came here to vent his anger on someone." He Feng also said at the side.
Ma Xiaoguang couldn't help but feel speechless when he heard this. Why did the two section chiefs of the Minerals Department encounter such a shrew? Is it true that one family does not want to enter the same house?
If he had to face the Yaksha-like shrew from yesterday every day, it would be reasonable for Deputy Section Chief Lan to find a social butterfly.
Not interested in learning about the gossip of the Mining Department, Ma Xiaoguang was thinking about something. Wouldn't he have to fight the social butterfly again after get off work?
Must be cautious!
It is difficult to make people suspicious and not return empty-handed. The key is Li Danlin's electric eyes. Thinking about it makes me dizzy.
After get off work, Ma Xiaoguang bit the bullet and came to Huiyuan.
He did not rush to Li Danlin's house, but walked slowly from the lane entrance while observing the situation in Huiyuan unnoticed.
There are Shanghai-style Shikumen houses in Huiyuan. Most of the people living in them are middle-class families of this era. Nowadays, most of them live alone, unlike many shared houses in Shanghai.
The same is true for Li Danlin's house.
Although the Shikumen houses are very close to each other, you can climb the wall or go from one house to another from the roof without particularly good skills.
But the problem is that the police station's investigation report clearly states that when Lan Anben died, the doors and windows of the study were closed!
Why did he close the doors and windows?
However, the police station found no other suspicious things about Lan Anben at the scene. It seemed that they had to re-examine the clues of this case.
Ma Xiaoguang slowly walked into Li Danlin's home while thinking about Lan Anben.
"Mr. Feng, sit down quickly. What would you like to drink?"
After not seeing her for a day, Li Danlin regained her energy and seemed completely unaffected by yesterday's unexpected incident.
"Tea, let's drink coffee now." Ma Xiaoguang said with some lingering fear.
"Mr. Feng, don't worry. The coffee in the living room is different from the one in An's study. It's separate." Li Danlin saw the guest's worry and explained quickly.
"It's better to drink tea, we are Chinese."
Soon the tea was brewed and served to the table. Phoenix Dancong exuded a fragrant aroma.
"Good tea...Miss Li is really good at brewing tea."
Due to work requirements, Ma Xiaoguang could only praise him in a fancy way, but he did not act against his conscience. Li Danlin's tea was indeed very good.
"Mr. Feng won the prize, and his skills are so trivial that they cannot be judged by the Fang family." Li Danlin said with a smile.
The two of them just chatted with each other.
"It's boring to sit like this all the time. Do you have any records at home?" Ma Xiaoguang asked.
"Yes, Anben and I both like to listen to music and opera." Li Danlin said quickly after hearing what the guest said.
"When the police asked me about it that day, they saw there seemed to be a gramophone on the second floor and records on the bookshelf..." Ma Xiaoguang said quickly.
"But the study... I don't dare to go there now." Li Danlin said with a change of expression after hearing this.
"Then I'll take the liberty of bringing down the record and gramophone." Upon seeing this, Ma Xiaoguang said quickly, relieving the hostess's embarrassment.
The study door on the second floor has a hidden lock. Without a key, it cannot be opened from the outside with the door closed.
Fortunately, before going upstairs, Li Danlin gave Ma Xiaoguang the key.
The window is also a new type of latch. Once it is plugged in, unless a professional is a thief, even if the agent opens it from the outside, it will take some effort.
After checking, there were no signs of prying or technical opening of the doors or windows.
There is an attic above the second floor. There is no mezzanine between the ceiling and the floor, and there are no mechanisms. It is impossible to get down from the upstairs.
The first floor is below, and there is no way to break through the floor and go straight to the second floor.
"Could it be that Lan An really got wind of this and was afraid that the matter would be exposed and poison him to death?"
With doubts, Ma Xiaoguang moved the gramophone and some records from the second floor to the first floor.
After plugging in the electricity and putting on the record, the gramophone played a unique style of music from the 1930s - "Teach Me How to Miss Her".
"This is the key, please keep it." Ma Xiaoguang put the key on the coffee table.
"Mr. Feng is really a gentleman. There are not many such people nowadays." Li Danlin said with a slight smile, but there seemed to be many unspeakable meanings in his eyes.
"Ahem, there are still many good people in this world..."
When Master Feng (Ma Xiaoguang) heard this, he smiled, glanced at Li Danlin opposite, then picked up the teacup and continued to sip the tea.
"Such an unfortunate thing has happened now... Miss Li lives alone, aren't you afraid?"
"Be afraid, what's the use of being afraid, where can I go as a single woman?" Li Danlin's eyes became sad when she heard this, with tears glistening in her eyes.
"That's true. Fortunately, the environment here is pretty good. You can find a few more people to play cards. It will become lively when there are more people." Ma Xiaoguang said.
"That's right, the neighbors get along pretty well. If Mr. Feng doesn't come today, I'll go next door to play mahjong today."
"Distant relatives are not as good as close neighbors. If something happened that day, wouldn't there be neighbors who could help?"
"That's right, fortunately Mr. Zeng, if he hadn't helped deal with it and called the police, I don't know what I would have done..."
"That's because Miss Li is very popular."
The two chatted for a while, and finally the man suggested that everyone stop cooking and go out to eat.
After dinner, I sent Li Danlin home.
When he arrived at the door of his house, Ma Xiaoguang frowned and said to Li Danlin: "Oh, what a coincidence. The old man at home is still in the hospital, and I have to go there... We will make an appointment another day."
"Of course I have to accompany the old man, so we'll meet again." Li Danlin said reasonably but somewhat resentfully.
Commander Ma is a big-hearted person.
After hearing this, regardless of whether the social butterfly still needed to calm down or needed comfort at night, she quickly hailed a roadside rickshaw, got on it, and ran away in a hurry.
"The neighbor named Zeng, quickly and quietly arrest him!"
The first thing Ma Xiaoguang said when he saw Ning Zhongping was to ask him to arrest people quickly.