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Zuo Zhong, Gui Youguang, and Ling Sanping walked quickly to a row of flat houses at the corner of the hospital. They said they were flat houses, but they were actually on the back of a low hill, five or six meters above the lowest point of the courtyard.

The house faces south from the north, and behind the north wall is a fence. From a distance, you can see the roofs of several houses. This is the pharmacy of Renxin Hospital, where all the medicines of the hospital are stored.

The purpose of setting up the pharmacy here is to avoid the humid air and direct sunlight as much as possible, because not only penicillin is afraid of the sun, but many medicines need a cool environment for storage.

At this time, the security inside and outside the pharmacy was heavily guarded. A group of small spies stood with guns and surrounded five or six pharmacy staff and guards in the middle of an open space, temporarily restricting their movements.

"Chunyang, inform the second office that anti-espionage is an old job. Ask him to check their financial situation and interpersonal relationship. If there is really an inner ghost here, it is probably for money."

Zuo Zhong glanced at the crowd, left a sentence and came to the door of the pharmacy, took the flashlight from his subordinates, and shone the light on the dark room with his backhand.

Under the light, several medicine cabinets were placed horizontally in the room, and the four walls in the south, east, and west were also placed in a circle, and a wooden cabinet with a simple and elegant appearance on the north wall attracted Zuo Chong's attention.

The cabinet is about two feet high, one foot long and wide, shaped like a safe, painted dark brown on the outside, with several copper hoops on the surface, dozens of densely packed air holes on the top, and four thick tiger legs underneath.

Observe carefully, there are three drawers on the cabinet, each with a pair of semicircular brass handles, the middle drawer is also equipped with a built-in lock, and there is a copper basin at the bottom of the cabinet, from which water drops drip from time to time.

Zuo Zhong put on the shoe cover, carefully avoided a few clearly visible footprints on the ground, walked to the cabinet next to the wall, touched it with his hand, and immediately felt a chill.

This is a freezer from the Republic of China era. In April, the temperature in the mountain city was over 20 degrees. If you want to store penicillin dry powder for a long time, this is an essential equipment.

Contrary to what many people imagine, freezers appeared in China very early. In the Shang Dynasty, the ancients already knew how to use ice to preserve food. During the Warring States Period, the nobles even used ice containers for drinking.

It is very simple to use ice cubes for refrigeration, but because ice cubes are difficult to store when it is hot, it is necessary to build an insulated ice cellar for storage. Only the big nobles and big businessmen can enjoy it.

In the Republic of China, the former dynasty fell, and the ice cellar lost its largest customer and turned to the private sector. Natural ice began to be supplied to restaurants, hospitals, snack shops, and people's homes, and was no longer monopolized by the government.

During the hot summer months of May, June, and July of the lunar calendar in Shancheng every year, ice delivery workers will deliver natural ice cubes preserved in winter to users before [-]:[-] a.m. every day.

After the user receives the ice cubes, they put them in the upper and lower drawers of the freezer, and the items to be refrigerated are placed in the middle. As the ice cubes melt, the temperature in the refrigerator decreases.

On the one hand, it can cool the items inside. On the other hand, the cold air is also released from the hollow air holes on the upper box cover, which can also reduce the room temperature. It is regarded as an air conditioner.

With a double lining of tin and lead and an inch-thick wooden wall for insulation, with sawdust in between, a block of ice could slowly melt for a day.

The next morning, unplug the bottom and top corks, release the melted ice water, and then put in new ice to continue using, which can fully guarantee that the properties of the medicine will not be affected.

Zuo Zhong took out Ling Sanping's key and put it into the keyhole of the middle drawer and turned it gently. After a click, the hidden lock was opened, and the two iron cans brought by Zuo Jun in the mist were firmly placed inside.

After taking out the tin can and looking at it for a while, he turned around and called Gui Youguang in, and asked him how he knew that the medicine was missing. The missing 500g of medicine powder could not be seen from the outside.

"Deputy Director, look."

For this question, Gui Youguang took a registration book and a steelyard from the table in the room, and pointed to a long list of records on the No. A drug in the book to answer.

"Drug A is penicillin. Every time it is tested, the weight of the product and the remaining weight will be recorded. This is what I request, in order to prevent someone from stealing the drug.

Just after the humble job arranged the security work, I suddenly thought of a problem. The ghost can leak the news of penicillin, and he can also attack the drug itself, so he came over to check immediately.

Dr. Ling's last test was three days ago, and he hasn't touched the medicine jar and freezer since then. After comparing the weights, we found that the medicine was missing, and the time of the incident can be determined within three days.

Then I asked someone to control the suspicious person to prevent anyone from escaping and report to you immediately, deputy seat, this is my fault, if we can weigh every day, this kind of thing will not happen. "

Zuo Zhong interrupted the other party's review with a wave of his hand, and carefully checked the register. The records showed that after the last test, the total weight of the two cans of medicines including the cans was 4800 grams.

He casually picked up the steelyard and weighed the medicine. Sure enough, there were only 8 catties and 6 taels left, which was a full catty short of penicillin, and the two jars were missing half a catty each.

This shows that the person who stole the medicine was very cautious, worried that taking the medicine from one jar would be too conspicuous, so he took a part of the powder from the two jars separately to reduce the probability of being discovered.

So the question is, how do drug thieves avoid other people?

Ling Sanping said earlier that the pharmacy is manned 24 hours a day and supervised by guards. It is impossible for someone to open the freezer to take medicine for a long time without being discovered.

After thinking for a while, Zuo Zhong turned his attention to the freezer. If the medicine wasn't stolen by someone inside the pharmacy, could the thief come from outside?

If you want to take an item from the confined space, but you can't go through the main entrance, you can only make a hole. It just so happens that the pharmacy is so close to the wall, so there is indeed such a possibility.

"There is light, move it away for me."

Zuo Zhong kicked the freezer next to his feet, and then stood aside. Such a thick piece of wood plus lead and tin plates weighed hundreds of catties. Naturally, the majestic deputy chief of military command didn't have to do this kind of rough work.

Besides, when Gui Youguang heard the order, he spit into the palm of his hand, bent down and hugged the bottom of the freezer and lifted it vigorously, the muscles on his arms tensed up, and he moved the heavy freezer aside.

A flashlight lamppost swept across the north wall behind the freezer. The solid blue brick wall was intact, and there seemed to be no problem, at least there was no visible hole.

Zuo Zhong squatted down┴ and turned his head to look at the wall, and then at the back of the freezer, and found that the back was abnormally flat and covered with a layer of dust.

The freezer was left by the French, and it is rarely moved due to its weight. It has been placed here for so many years, and it is normal for there to be dust.

But he turned his head sideways, and through the light of the flashlight, he keenly noticed that the dust in a circular area with a diameter of more than ten centimeters in the middle of the backboard seemed to be lighter.

Zuo Chong frowned, sniffed, and immediately smelled a faint smell of paint. The next second, he raised his fist and punched it hard, punching a big hole in the back panel.

Seeing this scene, Gui Youguang's eyes almost popped out. Since when did the deputy director become a master of martial arts, he immediately fell into deep self-doubt.

A hardwood board more than an inch thick plus lead and tin boards would not be able to cut through it with an axe, let alone a fist. Anyway, he couldn't do it.

"What are you still doing? Go call someone."

At this time Zuo Zhong got up slowly, staring straight at the blue brick wall and said coldly: "Send people to block the surrounding traffic, control the nearby residents, and arrest all men, women and children.

Be careful when searching, especially the house adjacent to the pharmacy. You must first check whether there are traps and booby traps behind the door. The person who stole the medicine is likely to be a professional spy. "

He originally thought that the person who stole the medicine was doing it for financial gain, but now it seems that he guessed wrong. To restore the walls and freezer to such a perfect state, it must not be ordinary people who did it.

What's more, the thief didn't need to work hard to restore the scene like this. Only intelligence operations needed to do this. The purpose was to delay as much as possible the time for the military commander to find out that the medicine had been stolen.

As for why the intelligence personnel stole the medicine, the answer is easy to guess. Either someone wanted to verify the efficacy of penicillin, or they wanted to analyze the ingredients for imitation.

Gui Youguang figured it out in an instant, nodded and ran out to greet the little spies, and soon a group of people rushed out of Renxin Hospital and detained all the surrounding residents and pedestrians.

Half an hour later, Wu Chunyang and Gui Youguang arrived in the dark after receiving the news. As soon as they met, Gu Qi reported the results of the investigation on the pharmacy staff and guards to Zuo Zhong.

According to the salary table of the General Affairs Section and the inquiries of people around them, it can be confirmed that the economic and interpersonal relationships of these people are normal, and no suspicious things have been found for the time being.

When a person chooses to betray, there is always a reason, whether it is money, sex, power, or belief. If there is no reason, it means there is no evidence.

Now that he already knew that stealing the medicine was an external crime, and there was no conclusive evidence, it would be inappropriate to lock up the people in the pharmacy, so Zuo Zhong waved his hand and ordered them to be released.

But they still can't go far, ready to be inspected at any time, and it is no coincidence that the thief punched a hole exactly behind the middle drawer through a wall.

Looking at the spies who had been granted amnesty, Zuo Zhong pondered for a while, and gave an introduction of the general situation and the current findings, his tone very angry.

Ling Sanping on the side sighed, he didn't know what to explain now, anyway, it was a fact that the thief stole the medicine right under his nose.

But how did the other party do it? There are always people in the pharmacy, so no one heard the sound of the other party tearing down the wall or destroying the freezer, or is the hospital staff a bunch of deaf people?
Wu Chunyang and Gu Qi looked at each other after listening, their eyes were full of anger, this thief was not only stealing medicine, but also slapping their military commander in the face!

Even our own medical base can have such low-level security loopholes. What people outside will think if they find out, Xu Enzeng and his like will wake up laughing if they are dreaming.

Everyone was silent for a long time. Zuo Zhong took the lead to leave the hospital. He wanted to see who made the hole, and the rest of them followed closely, and the group walked towards the house.