Du Ming heard the two words "Li Ge" and immediately furrowed his brow. After receiving the file, he flipped through the entire document, nodded, and said, "Looking at these materials, it's very consistent with the identity of a black society member."

  Jin Ling'er said, "We only knew that his subordinates called him Li Ge, he worked under Qi Changrui, but there were a lot of people with the surname Li in Qi Changrui's group, and we didn't know which one was the 'Li Ge' who was in charge of black and evil affairs. After so long, our efforts finally paid off and we found him."

  Du Ming said with approval, "Well, you're not bad, quite reliable. The people under Old Stone's command are really capable."

  Jin Ling continued, "Last time, the hideout of Tian Ge's men was taken down by us two - actually mainly by you. Now Li Li is short-handed and has been recruiting people from outside according to our investigation, hoping to find some outstanding talents who can participate in important matters."

  Du Ming seemed to have understood Jin Ling's meaning, raised an eyebrow and asked, "Your meaning wouldn't be that you want me to go undercover, would it?"

  "Jin Ling'er said hesitantly, 'At this time, it's indeed a good opportunity for us to send an undercover agent. However, most of the detectives in our police station have dealt with criminals before, and many criminals remember their faces. If we were to send an undercover agent, it would be easy to expose them. That's why I thought of you... But if you're not willing, just tell me, and I definitely won't make you go!'"

  "Who says I'm unwilling?" Du Ming said, "Such a good opportunity, I'm very willing to go."

  "However, this time the undercover operation is really very dangerous. That Tian Ge is already so ruthless, and this Li Li is an even more dangerous character. Moreover, this undercover mission is long-term, and in the future, it's highly likely that you'll still have to come into contact with their big boss Qi Changrui. Qi Changrui is a figure who, even in the underworld, has a reputation for being extremely ruthless and poisonous. You're not a police officer, you don't have this kind of responsibility to take on this life-threatening danger!"

  Du Ming smiled and said, "Believe me, I want to understand the situation behind this gang more than you police do. I have my own responsibilities, and even if you didn't look for me, I would still go undercover. It's up to you whether or not you want to help me."

  Jin Ling'er heard Du Ming say this, and after a moment of stunned silence, she hesitated for a while before nodding her head and saying, "Alright, since you're really willing to do it, I'll fully assist you, and all the resources in our bureau can be used by you, as long as you can help us crack this case."

  "That's natural," Du Ming gritted his teeth and said firmly, "I will solve this matter no matter what!"

  Jin Ling'er bit her lower lip and said, "Du Ming, be careful."

  Du Ming smiled and said, "Don't worry, with my skills, a small-time gangster like Hei and Li Ge won't be able to hurt me. Do you have a plan for how I can infiltrate them as an undercover agent?"

  "According to observations, Li Li and his people have been frequently going to various underground boxing arenas recently. It seems they want to select capable people from the underground boxing circles to join their group. You've already made a name for yourself in that underground boxing arena last time, and Li Li seems to have heard of you. He's probably eager to meet you. If you go back to that underground boxing arena and fight a few more times, you'll definitely run into him. When he sees your skills, he'll likely invite you to join his group. Just agree and you can infiltrate their organization as an undercover agent."

  Du Ming nodded and said, "This idea is not bad, it seems that I will have to perform well in the underground boxing arena at that time."

  "But after joining Hei Bang, things are unpredictable, you can only rely on yourself."

  Du Ming hummed and said, "This is no problem, undercover agents are supposed to be flexible, I've done this kind of thing before, don't worry, leave everything to me."

  Jin Ling'er heard Du Ming say that he "hadn't done much before", and couldn't help but feel a little curious, wanting to ask, but looking at Du Ming's expression, it seemed that he didn't plan to talk about these things, so in the end she didn't say anything.

  "Oh, right," Du Ming suddenly remembered something and took out a U-disk from his pocket. It was the file he had copied from the portable hard drive in the office of the person in charge of the underground casino last time. He handed it to Jin Ling'er, "There's some information about Qi Changrui here, I think it should be helpful for this case."

  Jin Ling took the U disk and connected it to her computer, opening the contents inside. She saw not only Qi Changrui's basic information, but also Jin Qi Group's data, as well as many records of interactions between Qi Changrui and various factions of Hei and Dao, including information about Qi Changrui's subordinates and various weapons.

  Jin Ling'er exclaimed, "These documents can be used directly as evidence to accuse Qi Changrui! Although it's not enough, it's already a huge gain! Du Ming, where did you get these documents from?"

  Du Ming smiled mysteriously, "There is an underground casino in the suburbs, it's a den of underworld and black society, inside they are helping with money laundering and have connections with overseas gangs. Qi Changrui is also one of them. These documents were stolen by me from their boss. You police should go take a look too, if possible, just seal off that place, isn't underground casinos against the rules anyway?"

  "Jin Ling'er said discontentedly, 'Why didn't you tell me about this place earlier? It's really...' "

  Du Ming said helplessly, "Please, my police flower, aren't you busy? You're busy, I'm also very busy. It's rare to see each other, so I'll just hand over these materials to you right away."

  "Alright, I'll consider it a good deed. Later on, I'll bring people to investigate the place. Give me the address."

  Du Ming pulled out a piece of paper from the table, took a pen, and wrote down the address of the underground casino. He handed it to Jin Ling'er and told her how to identify the location when she arrived.

  Jingle's eyes twinkled as she suddenly said, "I've found that being with you allows me to learn quite a bit of strange and unusual knowledge, some abnormal knowledge."

  Du Ming smiled and said, "Don't look down on these small pieces of knowledge. Just like last time when you went to the underground boxing arena for investigation, if it wasn't for me, you would have been exposed already. The good outcome is that they chased you out, but the bad outcome... you wouldn't want to know what kind of place this illegal and lawless place is for a police officer. When you go on your own mission in the future, you will definitely need these pieces of knowledge that can't be learned from being a police officer. At that time, you will thank me!"