Michael Chen did this to protect his younger brother. It should be clear to those who have watched the TV series that after Michael Chen was arrested in the TV series, everyone thought that he would not give up his brother's identity at that time, but he did it anyway. Many people didn't understand at that time. In fact, what he did was meaningful, because his brother Chen Shan was in a very complicated situation.

At that time, many forces were intertwined, and the situation was really complicated. Because my brother is undercover, he is suspected by many parties, but there is no actual evidence. In this case, any trouble may affect his brother's life. But there is no evidence, which is actually the most crucial point, so many speculations are unfounded. In addition, his brother's identity is quite special, so his brother was very safe at that time.

But as long as this suspicion exists, his brother's actions will be restricted, which is unfavorable to his actions at that time. That's why he did it. He specifically told them about it and asked them to take the initiative to investigate. Because there is no evidence, his brother is safe. After the investigation, his brother will be cleared of such suspicion, which is more conducive to the follow-up actions. At that time, watching TV dramas may not be understood by many people. Now it seems that this choice is really correct, and it can be said that it is the only reliable choice in that desperate situation.

It can also be seen that this person has a strong ability to improvise. Of course, this is also the quality that a spy should have. Let's just say that sometimes our IQ can't keep up with the writer's brain. However, it is undeniable that undercover at that time was really a very dangerous profession.