Ken Martin, who is now the chief of the New York Police Department, was on the scene, and there are many cases of bank robberies in the United States, but this time it was unusual.

First, the police call evacuated the surrounding police force, and then the traffic signal congested many surrounding streets, and only the front of the bank was unobstructed, which was obviously a deliberate robbery for a long time.

Ken Martin is a black man, he is in his fifties today, he has been a police officer all his life, and it is the first time he has seen such a brilliant bank robbery, but it is impossible for the other party not to leave clues, when he came here, the surrounding patrol officers and support officers have already cordoned off the scene, and Sheriff George Stacy is questioning the bank manager.

Seeing that the director was coming, George Stacy walked up, "Director, the case is a little troublesome, and it is possible to have two clues at present!" ”

"George, why is it possible?" Ken Martin asked, confused, especially when he heard the word 'clue', and he wanted the other party to tell him in the affirmative.

"That's right, the first clue was provided by witnesses at the scene, who knew the specific location of the bank's alarm device, knew that the bank manager was carrying the key to the vault, and knew the password of the vault, so it can be said that they knew the bank well."

"And the two security guards of the bank, except for the security guard at the door, were controlled by the gun at the beginning, and the remaining one has been in the monitoring room, according to him, the electronic lock cannot be opened, and the landline and mobile phone are also completely unable to get out."

"So, we have reason to suspect that they have an internal response, but now we wonder why the security guards in the monitoring room said that the landline and mobile phone can't be called, and now our technicians are checking it, and there will be results in a while. It's just that I don't think he's lying, after all, this kind of thing is easy to investigate, and there shouldn't be such a flaw in the other party's sophisticated actions, which is tantamount to directly exposing an internal response. ”

Ken Martin nodded, "Go ahead to the second one!" ”

"Yes." George Stacy flipped through the small notebook in his hand, and then continued: "The second one is for the New York Traffic Monitoring Center, and today's police calls are all from their landlines, and these police calls have drained the police around the bank, and the results are all false alarms. And then almost all the traffic lights around turned red, which made the traffic very congested, and even if someone found out about the bank robbery and called the police, we couldn't come too quickly. ”

"But who can do that at the New York Surveillance Center? There was a problem with the traffic light, but they didn't find anything abnormal, until our main station called for help, and they found out about the traffic jam, which is very weird! ”

"Therefore, these two clues are also full of suspicions now, both the bank and the New York traffic monitoring center, but it is very difficult to determine who the robbers should be, or whether they really have an internal connection, it is not known." George Stacy reported his analysis, and Ken Martin nodded.

"It's really a tricky case, and the bank will naturally cooperate with us, but it's hard to say at the New York Traffic Monitoring Center, which can make the traffic chaotic without being discovered by the staff on duty, such a person should have a lot of authority, and how can such a person rob the bank?" Ken Martin was also puzzled, "However, the case still needs to be investigated, first check the bank, and then I will contact the traffic monitoring center and ask them why they didn't find out about the congestion in the morning, which can be regarded as a test!" ”

"Understood, Director!"

Mo Fei left them two clues, both of which were very obvious but not easy to investigate, and the bank was just a small episode, because they would not find anything, and if there was no internal response at all, they would fall into a dead end.

And the traffic monitoring center is not so easy to investigate, they manage the traffic situation of the entire New York, everything is very busy at all times, and there are many people, it is very difficult to know who is using the landline to call the police, and Mo Fei also deleted their internal surveillance video today, making things extremely complicated.

George Stacy had the security guard in the surveillance room taken to the police station, and the other party was a stout white fat man, 1.85 meters tall, and the chair in the interrogation room made him a little uncomfortable.

"Green Paul? You have a very good record, you've been working at this bank for eight years, what do you think of this robbery? George Stacy walked in, speaking in a very gentle tone as she went.

"Mr. Sheriff, I know that I am very suspicious this time, but at that time I really couldn't get out, the electronic lock didn't know why it couldn't be opened, and the landline and mobile phone were full of blind sounds, I couldn't call the police, the monitoring screen was a snowflake, I ......" Green Paul's face was frustrated, "Then everything returned to normal, I kept trying, and when I was finally able to get through the phone, the electronic lock was also opened, and the monitoring returned to normal, I was stupid, I felt like I was caught in a conspiracy." ”

"You realize you're not in a good situation, right?" George Stacy continued.

"Yes, I took the police exam, but because of my physical condition, I didn't pass, and finally found a job as a bank security guard, although I can only stay in the bank every day, but the salary is not low, especially the night shift and subsidies, I am not short of money." Greene Paul said to himself, his subconscious explaining his innocence, "It's been eight years, I've known this place like the back of my hand, and it's the first time I've encountered such a situation, but I'm not stupid, I find my situation too bad." ”

"You're right, you're in a terrible situation." George Stacy didn't comfort the other party, but instead confirmed the situation, "All the evidence points to you, I think you understand that, right?" ”

"Yes, the bank's dual security system actually relies on the police, handed over to the police to deal with the problem of bank robbery, and the so-called vault password I also have the opportunity to know, and I can't confirm the situation in the monitoring room, now the only chance is that your technicians find a little clue, someone hacked into the bank's monitoring system, and the landline and mobile phone have been manipulated by the other party." Green Paul did take the police exam, but he had a problem, and that was low blood sugar.

There is a high probability that he will faint after a certain amount of exercise, which makes him unable to get involved in the police profession, but his job as a security guard in a bank also makes him not short of money, and at the same time he has no bad personal hobbies, all of which are in the hands of George Stacy, and he cannot find the motive of Green Paul's crime.