After figuring out the entire incident, Lu Chengzhou could finally breathe a sigh of relief.
As an intelligence officer, Shizuo Yamaguchi kept his detection techniques secret, which Lu Chengzhou could understand.
But Shizuo Yamaguchi didn't expect that a piece of trash thrown away by his subordinates would make Lu Chengzhou understand everything.
In the afternoon, Lu Chengzhou and Ma Yuzhen had an emergency meeting.
"The reason why Lin Fan was exposed is because the electricity consumption at 37 Greenway Road is relatively large." Lu Chengzhou sighed.
"Electricity consumption?" Ma Yuzhen didn't understand for a moment.
"For ordinary households, two kilowatt hours of electricity a month is enough. We need electricity to send reports, and the electricity consumption will exceed ten kilowatt hours a month. By grasping this, Yamaguchi Shizuo can easily narrow down the scope of suspicion." Lu Chengzhou said slowly.
If Lin Fan hadn't been in trouble, he wouldn't have noticed this.
"In that case, we can use dry batteries," Ma Yuzhen said.
"Sending with dry batteries is unstable, and the source of the dry batteries will also be one of the clues." Lu Chengzhou shook his head.
Although the Japanese have not yet controlled these equipment, they will definitely do so in the future.
Moreover, if you buy dry batteries in Haigu and use them in Haigu, it is difficult not to leave traces.
"Then what can be done?" Ma Yuzhen asked.
"Don't worry, now that we know Yamaguchi Shizuo's tricks, we will always find a way. Is there any progress on Liu Jinghua's side?" Lu Chengzhou asked.
Yesterday, all the components were handed over to Liu Jinghua. If everything goes well, they can be assembled in the next two days.
"I went there in the morning and he was still doing the final debugging. It is estimated that it will be debugged before tonight." Ma Yuzhen is also very concerned about this matter.
"You go back later and ask him not to send reports between eight o'clock and twelve o'clock in the evening." Lu Chengzhou reminded.
There are many radio stations turned on during this period, so it is easy to fish in troubled waters when transmitting during this period.
However, Lin Fan has surrendered to the enemy. After knowing the habits of the military commander, the enemy will pay close attention to this period of time.
The first wavelength and call sign that Lu Chengzhou gave to Liu Jinghua were the ones he originally used.
If the enemy is also paying attention to this wavelength, as long as Liu Jinghua sends a report, it will be known immediately.
Even if the enemy couldn't decipher it, they could easily guess that Huo Yan had already contacted Chongqing.
After Ma Yuzhen left, Lu Chengzhou went to the electric lighting company again.
The toll collectors of the electric lighting company will wear uniforms, carry a schoolbag, and ride bicycles to various households to read meters and collect fees.
Lu Chengzhou easily stopped a toll collector at the intersection next to him.
"I'm from the police department, and I have something to ask you to assist in the investigation." Lu Chengzhou flashed his ID card to him, showed him only the cover, and immediately took it back and put it in his pocket.
It's not a special situation, he doesn't like letting others see his ID now.
To prove your identity as a police officer, a pistol and a pair of handcuffs are actually enough.
"Hello, police officer." Seeing that Lu Chengzhou was on patrol, the toll collector immediately got out of the car, held the handlebars with both hands, bowed to him, and said respectfully.
"I want to know, are there any residents in the British Concession who steal electricity?" Lu Chengzhou asked.
If you want to avoid Yamaguchi Shizuo's investigation, the best way is not to replace the dry cell battery to send the message, but to prevent the electricity from passing through the meter.
If the meter data is not collected, even if one hundred kilowatt hours of electricity is used a month, Yamaguchi Shizuo will only see the data of two kilowatt hours of electricity a month.
"Of course there is. In order to save money, they are not afraid of being electrocuted." When the toll collector heard that Lu Chengzhou was investigating the electricity theft case, he was even more willing to cooperate.
"How do they usually steal electricity?" Lu Chengzhou asked, this was the question he was most concerned about.
"That's all kinds of things," the toll collector said casually.
"Tell me about it." Lu Chengzhou took out a cigarette and handed one to the other party.
"Thank you, police officer." The toll collector lifted the bicycle, put his feet on the stand, and with a click, the bicycle stopped firmly.
In order to prevent Zou Jing from being ruined, Lin Fan wore headphones in the telecommunications room diligently, ready to listen to the radio signal at any time.
There were two radio stations in front of him. The wavelength of one was adjusted to Haigu Station, ready to receive calls from the headquarters at any time.
Another radio station uses the wavelength used by flames.
Although there is no radio station at Haigu Station, the flames have great magical powers, and they can get radio stations if they can't make up enough.
The previous radio stations at Haigu station were all produced locally.
When it was almost five o'clock, the signal light on the panel of the radio station that listened to the flame wavelength suddenly flashed continuously.
Lin Fan was stunned, quickly put on the radio's headphones, and at the same time reached for a pencil and started recording.
However, when the pencil was about to start writing, the pen tip suddenly stopped in mid-air.
As the radio station director of Haigu Station, Lin Fan has very strong professional ability. He can press nearly 30 yards.
When he heard the previous set of telegrams, he suddenly calmed down.
After receiving the first telegram, Lin Fan knew that it was a telegram from headquarters to Yan Yan, because the call sign was familiar to him.
Lin Fan was very familiar with the telegram sent by the headquarters to Yan Yan. Since it was a telegram sent by the headquarters to Yan Yan, he could receive it normally.
This telegram was very short, with only a dozen codes. Obviously, this was Chongqing's urging.
Chongqing had already sent a telegram to Yan Yan before, but Yan Yan never responded. It was reasonable for Chongqing to urge him again.
"Did you find anything?" Masahiro Matsumoto suddenly walked up behind Lin Fan and asked.
"This is the telegram I just received. It was sent from Chongqing to Huo Yan." Lin Fan took off his earphones and when he stood up, he handed the draft of the telegram to Matsumoto Masahiro.
"Continue monitoring." Masahiro Matsumoto nodded, took the telegram and left.
In fact, in addition to Lin Fan, Toshio Okaki has also been keeping an eye on the radio station in Chongqing. When the telegram is sent from Chongqing, Toshio Okaki will also hand over a copy of the same telegram to him.
At this time, I was interested in Liu Jinghua's residence in the concession. After sending the telegram, he leaned on his chair and stretched out.
He did not know that the telegram just sent was not as Ma Yuzhen introduced. The wavelength was indeed the wavelength associated with Chongqing and Flame, but the call sign was not that of Flame, but that of Chongqing.
This was just a small trick. The telegram he sent did not use Chongqing's call sign, but his own call sign, which could deceive the military police detachment. However, when Chongqing received the telegram, he looked completely ignorant.
Did you receive the telegram you sent?
This was the first reaction of the Telecommunications Department staff. Fortunately, he did not record it because the call sign was Flame and the signature was Chongqing.
The Telegraph Office was unable to translate this telegram, so it had to give the draft to Mao Shanyan.
Mao Shanyan was also surprised when he heard the introduction from the Telecommunications Office. He also asked if the flames had made a mistake.
However, when he took out his code book and deciphered the contents of the telegram, he broke into a cold sweat and almost ran to Dai Li's office.
