Yang Yan was stunned for a moment, he didn't know why the old man mentioned his competitors, but it didn't seem that the name was right, did the company call rice, did it have no rice. However, Yang Yan didn't chew the words, he just nodded.

"Two weeks ago, we carried out an arrest operation, and there was a suspect in it, and his identity was a food delivery person!

When Old Man Dai Guoxun said this, Yang Yan and Xia Yu's expressions also became serious, and they also realized the problems in this.

Luoluo just raised her little head, and she finally realized that her father was not looking at her, and the little girl pursed her little mouth unhappily, and was about to hum in protest.

However, Dad's solemn face was reflected in Luoluo's big bright and transparent eyes, and she was stunned in confusion.

What's wrong with Dad?

The little girl had a vague sense that the adults were discussing something very important.

However, it is also very important for Luoluo to learn "magic" from his father!

Do you want to call Daddy?" the little girl struggled.

Yang Yan sensed his daughter's movements, and he was worried that the little guy would be disobedient and noisy, affecting their conversation, and showing a very impolite behavior in front of Teacher Dai.

He lowered his head, but saw Luoluo pouting his little mouth, turned his little body, and obediently snuggled between his legs, obviously the little girl was still a little unhappy, her two little hands grabbed her father's big hand at her knees, and her short little palms grabbed her father's fingers, and fiddled sullenly.

Even so, the little girl is already very well-behaved!

How many children under the age of two are able to stay quietly for a while?

Yang Yan looked at her daughter's little head fondly, and secretly sighed in her heart. But he didn't look at it for long, he quickly raised his head and looked at Old Man Dai Guoxun seriously.

"Like this, a takeaway delivery man who shuttles through the streets and alleys, often has to deliver food to his home, wearing a uniform and looking like a stranger, it is difficult for people to be on guard, if he has bad intentions, it is very easy to have problems!" The old man gave a very sharp conclusion.

"How is the recruitment of takeaway delivery workers on Tao Takeaway carried out, and will they be required to provide a certificate of no criminal record?" Xia Yu turned his head and asked Yang Yan with concern.

Yang Yan shook his head and said with a wry smile: "To be honest, I don't know how this work is carried out, and what are the qualification requirements for the recruitment of takeaway delivery workers...... But at the beginning, when the company was established, there was really no requirement in this regard, and I remember that everyone discussed at that time that it was necessary to have a health certificate, after all, it was a food delivery service. ”

"It would be better if you asked for a certificate of no crime, just like a taxi company recruiting a taxi driver, and this requirement will make many suspects who violate the law and commit crimes like Mr. Dai say dare not sign up to join the industry. Xia Yu said softly.

"That's right, Xiao Yang, as a service industry, you can't just think about making money, but also shoulder social responsibilities and be responsible for the safety of customers!" Dai Guoxun said sonorously.

Dai Guoxun speaks like those pretending politicians in TV dramas. However, what the old man said was the truth, and he was honest, he treated Yang Yan as a junior he recognized for teaching, but after being nurtured in officialdom for so many years, he inevitably brought a little officialdom.

Yang Yan is not a black-hearted businessman, he is still a little innocent, so he nodded seriously and wrote down this matter in his heart.

......

Yang Yan's attitude is sincere, he can humbly ask for advice, and he can communicate with himself by drawing inferences, and the old man Dai Guoxun still has a good impression of him.

"Fighting abduction is a long process, often some children are rescued after many years, or they have grown up, but at this time his appearance has changed a lot, which will also bring great problems to our intelligent human recognition system......

Later, Yang Yan also consulted with the old man about many face recognition problems, especially when encountering the coping experience when the case dragged on for too long and the person's face changed with age, the old man Dai also knew everything and told Yang Yan a lot about the growth laws of the human body.

Don't look at the old man's job as a policeman, he is also a "detective" who has solved countless cases, and his knowledge is also quite rich, especially when he later studied on the job and obtained a master's degree in forensic science from Southern Medical College......

The exchange between the two was very warm, and the more the old man Dai Guoxun talked, the more energetic he became, he looked at Yang Yan who could keep up with his train of thought, his eyes showed a look of appreciation, and even had a feeling of hating each other!

Xia Yu couldn't interject, she could only sit on the side and listen quietly, looking at her straight sitting posture, as if she was more well-behaved than Luoluo!

After I don't know how long, Xia Yu saw that they were chatting dryly, and the water in the cup was gone, so he got up and went to help them boil water.

Old man Dai Guoxun looked at Xia Yu who was walking towards the kitchen, and suddenly said to Yang Yan with some emotion: "It's not easy to be a policeman, the working hours are long, there are cases, and you have to be on call, and you often can't take care of your family, so the family members of the policemen work harder, you have to be busy, and you have to be considerate and understand their work......"

Yang Yan nodded and said with a smile: "Teacher Dai, it's not hard, this is what I should do." And Xia Yu's job is okay, she is now working in the household registration department, and her commuting time is relatively stable. ”

"Xia Yu, this child, when she was in school, had very good grades, she can be said to be the most talented female student I have ever taught, and she has a high enthusiasm for case detection, it's a pity not to be a criminal policeman!" Dai Guoxun shook his head regretfully.

Although the old man is working on the front line, he is full of peach and plums, and he also has a lot of contacts in Guangdong Province! Therefore, he knows Xia Yu's family background, and he also knows why Xia Yu was arranged in a small police station! This is also why when he met Xia Yu last year, he was not able to transfer Xia Yu to the Criminal Investigation Bureau of the Provincial Department......

"But if you don't know if you don't know how to be a criminal policeman, it's good not to be a criminal policeman, especially a lesbian ......" Old man Dai Guoxun suddenly looked much older, and his eyes looked at the big bookcase on the side with a little loneliness.

Yang Yan turned his head along the old man's line of sight and saw that it was the black and white photo. This time, he looked closely, and the photo showed a woman in an old-fashioned police uniform, smiling brightly, in the prime of her youth......

Xia Yu boiled the water and walked back, just when she heard these words, she suddenly remembered a rumor she had heard when she was at school.

"Teacher Dai, I heard that my wife was also a criminal policeman before?" Xia Yu couldn't help but blurt out the question, but after she asked, she immediately regretted it, "I'm sorry, Teacher Dai, I'm not ......"

"It's okay, it's not something to say. It's been more than 30 years......" Dai Guoxun got up, took down the photo frame in the bookcase, and gently rubbed it in his hand, he was originally resolute and tenacious, and his face also showed a lifetime of tenderness.

"Your wife used to be a criminal police team with me, but I was the captain at ......the beginning, and she was just assigned," Dai Guoxun said slowly.