Conan Rick's Investigator

"No, maybe there is another way..."

Everyone immediately turned to look at Kudo Yusaku.

The latter's eyes were extremely serious, and he said solemnly: "It is definitely unrealistic to directly determine the location of this ship on the sea."

"But since this ship has been drifting on the sea for a long time, it must follow certain rules, such as ocean currents."

"I guess that in order to reduce the number of times the ship needs to stop at the shore to refuel, it must follow the ocean currents around the world to achieve the minimum fuel consumption."

"The world's ocean currents change in a regular pattern, so the ship's route should also follow a certain pattern."

"By the same token, there is a certain pattern in the time and location of this ship's docking to refuel."

"In this way, as long as we know the time and place where the ship docked in the past few years, combined with the changes in ocean currents, we can roughly calculate the sea area where the ship is currently located."

Kudo Yusaku's reasoning made several people in the office look as if they had suddenly realized something.

Only Qin Zhibo was different, he remained relatively calm.

He had thought of this method a long time ago, but the problem was that the reason why this ship was so mysterious was that there was no record of it docking.

After being shocked by Kudo Yusaku's wisdom for a few seconds, James also thought of this question.

"But Qin just said that this ship is a 'ghost ship' with no records. How can we know where and when it docked?"

In response to James' question, Yusaku Kudo on the screen smiled slightly.

"If it was in the past, there would be no way to know..."

“But now, things may be different.”

"When I visited Interpol recently, I learned that they were conducting research on a cross-generational technology called the 'cross-age recognition system'."

"This system can connect to surveillance cameras around the world and conduct cross-age searches on anyone. The technology is now quite complete and will soon be put into use."

James's goatee trembled slightly, and he muttered, "I've heard of this plan... but it seems that this technology can only be used to search for humans at present."

Kudo Yusaku smiled, "Indeed, this technology can only search for humans, but humans are often the key to the problem."

"In order to improve confidentiality, the crew of the Black Organization's ship should be relatively fixed."

"We can identify the faces of those on board and determine where and when the ship may have docked."

"In addition to being able to search surveillance cameras around the world in real time, that technology can also search for images and video footage."

"In theory, as long as enough data is invested, even an organization cannot be airtight."

James and Judy still didn't quite understand Kudo Yusaku's explanation.

But Qin Zhibo already understood Kudo Yusaku's thoughts.

That is to determine where the ship has docked by locking the faces of some people on the ship.

The first one to be affected should be Elena Miyano.

There are also Curacao and Miichiro Numabuchi, who were once crew members on the ship.

But there is a problem. When these people get off the ship, they may not necessarily wait for the ship to dock. They may also take a helicopter.

"But it should be possible for the people on the ship to get off the ship and take a helicopter to the land, right?"

Before Qin Zhibo could ask, Conan started questioning his own father.

Kudo Yusaku looked down at his own son and smiled, "Indeed, so this is why a lot of data is needed."

"Also, if they took a helicopter, that at least means the ship was not too far from the coast at the time, right?"

Kudo Yusaku's explanation gave Conan an instant epiphany.

To go ashore by helicopter, the ship must at least pass through the maritime cordon of each country.

Otherwise, if an unfamiliar helicopter approached the warning area directly, it would definitely be detected by the radar and then shot down and driven away.

Even if the organization's helicopter could obtain legal entry into the airspace, given the range of a civilian helicopter and the return flight, the ship itself wouldn't be very far from the coast. After Kudo Yusaku's explanation, everyone gradually understood the plan.

Kudo Yusaku then continued: "I will propose this plan at the next formal cooperation meeting. As long as we can get support from countries around the world, we can start implementing it."

"Organizations that have previously expressed their willingness to cooperate include Japan's Public Security Bureau, the US FBI, the US CIA, the UK MI6, Interpol ICPO, Canada's CSIS, and Germany's BND."

"Italy's SISMI and France's DGSE are also applying to join..."

When Qin Zhibo heard the lineup, it was an all-star lineup, and no one from the G7 group was left out.

Conan, who was standing low, was very excited when he heard about such a luxurious lineup.

This time, almost the strongest force on this earth has been gathered together, and it will definitely be able to completely defeat the organization!

Conan put his hands in his pockets, his icy blue eyes full of anticipation for the future.

……

After Qin Zhibo and others finished the video call with Kudo Yusaku and came to the next room, many FBI agents had been studying the people on the list for a while.

According to the contents of the list, all agents need to work in pairs and assign their respective targets to monitor.

Because these FBI agents are basically foreigners, monitoring a target for a long time will inevitably increase the probability of being discovered, so it is necessary to plan personnel combinations at any time and exchange each other's surveillance targets.

In this case, different groups of FBI will need to confirm surveillance and meeting locations with each other.

To further ensure security, a code system needs to be established to ensure that these locations are not disclosed.

This is also the lesson learned by the FBI after the failure after the last full moon incident.

It was because the FBI did not use any code when communicating with each other that time, and reported various locations directly on the phone, that the FBI base was found by Vermouth and the FBI's operations were thoroughly monitored.

The capture attempt on the night of the full moon therefore failed.

This time, the task of designing the code was given to two agents, Jim and Joan.

Seeing James and others coming back, the two of them immediately came up and took out the newly designed code.

"James, what do you think of this secret code that Joan and I designed?"

James took the phone from Jim, and on the screen was a bunch of garbled characters that looked like numbers but were not numbers.

There are three lines of such garbled code.

James stared at the three rows of garbled codes for a while, then frowned and shook his head slightly.

"I don't understand what this means..."

As soon as James finished speaking, Qin Zhibo, who was standing next to him, suddenly spoke.

"The code from top to bottom is: Beihua-cho 5-chome 5-banchi, children's clothing store, February 2th."

As soon as Qin Zhibo opened his mouth, all the FBI agents present were shocked.

Although Conan, who was at a lower position, was mentally prepared, he knew that no matter what the code was, it would not be difficult for Qin Zhibo, but he did not expect that Qin Zhibo could see through it at a glance.

"Qin! How did you see that at a glance?!"

Jim stepped forward and made a slightly exaggerated expression, "This is the result of Joan and I spending a whole month researching this!"

Qin Zhibo stared at the survey point on the mobile phone screen, thinking that this was not difficult.

"In fact, this code is very simple. Since it is a code for a meeting, it must be inseparable from the time and place."

"First, let's look at the last line. There are many symbols similar to ':', which are not found in other lines. This shows that this line expresses time. These ':' are actually separators between time numbers."

"But if you look closely at these ':'s, the two dots above and below are not aligned, which means the top and bottom parts of each line of the code need to be mirrored so that the two dots are aligned."

"After the alignment, it's time to solve the code puzzle of each special symbol corresponding to a letter."

"I think that should be the code comparison table you designed..."

As he spoke, Qin Zhibo raised his hand and pointed at the alphabet on the coffee table not far away.

Everyone turned around and immediately understood.

It turned out that Qin Zhibo first restored the mystery of the code, and then solved the meaning of the code by looking at the code comparison table on the coffee table.

Conan stood on tiptoe to look at the table on the coffee table, and understood why Qin Zhibo was able to decipher the code so easily.

If he were to solve the code, he would at least need to know the specific location represented by the code in order to reversely deduce the solution to the code.

And Qin Zhibo did rely on his terrifying observation skills to directly discover the "correct answer" not far away.

It's really a detail...

"Huh...Qin, you're scaring me to death!"

"I thought you really cracked the code that Qiao An and I designed at a glance!"

Jim was completely relieved when he learned that Qin Zhibo relied on "cheating".

After all, he distributed this code table to all the agents so that they would memorize it and not carry it with them when performing tasks.

But as soon as he finished speaking, Qin Zhibo walked straight to the coffee table and picked up the code comparison table.

"In fact, even if I didn't see this code table, I could guess the meaning roughly..."

"The special characters on your form are very similar to the shapes of the corresponding letters, but the letters are redrawn in the form of matchsticks."

"While this is easier to remember, it is also easier for the enemy to interpret."

James came over and picked up a code table, carefully read the comparison on it, and nodded in agreement.

"Indeed, it seems that the shapes of each code character and letter are very similar..."

At this moment, Qiao An, who had been silent all this time, suddenly spoke up, "Since the code we designed is so unusable, can you help us design a code system that cannot be seen through by the enemy?"

Joan spoke in an unfriendly tone and was immediately dissuaded by Jim next to her.

"Joan, stop talking."

"If the code is not well designed, it is bad. We can just redesign it..."

Jim's attitude was still humble and he was not angry.

But Qin Zhibo shook his head.

"It's useless. No matter how complicated the code is, as long as the opponent has enough code text, the content of the code can theoretically be cracked."

"So the most fundamental way to improve confidentiality is to ensure that the means of communication are not excessively eavesdropped or intercepted by the enemy."

Judy took a step forward and asked in confusion, "But we are all communicating through mobile phones. This is the only way to quickly contact each other in this city."

In response, Qin Zhibo smiled slightly.

"Guys, have you ever heard of a pager?"

Chapter 1451 Come back soon!

"pager?"

"That kind of backward machine?"

The FBI agent present immediately thought of what Qin Zhibo was saying.

Before mobile phones became popular, pagers were briefly popular, and everyone here has experienced that period.

James thought for two seconds, looked at Qin Zhibo, and asked, "Do you mean to use a pager to communicate?"

"Yes."

Qin Zhibo nodded. "The pager has simple functions and uses radio waves, so it is difficult to hack into and monitor. If it is encrypted with a code that changes at any time, it will be even more difficult to crack."

"Although it can only send some simple information, it is enough to convey simple information such as the meeting place."

"The most important point is that pagers do not have the positioning function of mobile phones. Even if the signal is intercepted by the other party, the specific location cannot be tracked, ensuring security."

It is true that pager radio waves also have the risk of being monitored, but it is much more difficult to monitor continuously than mobile phones.

Moreover, pagers can ensure that the location of the FBI agents themselves is not exposed.

Otherwise, even if the organization cannot crack the FBI code, they can still capture the person directly by tracking the signal location of the mobile phone, and then torture him to find out the solution to the code.

In fact, even Hiroki Sawada can easily track the location of a cell phone signal.

But pagers are different. This technological product of the last era cannot be connected to the Internet, so there is no risk of being continuously tracked and located.

"In addition, you all used mobile phones to communicate before. The organization will definitely strengthen its investigation methods in this regard."

"If we suddenly switch to pagers, the organization won't have the means to respond in a short period of time."