The nurse took the Conan-possessed trio to the oncology department of the hospital, where the crime occurred.

Dean Lu had already arrived and frowned when he saw the nurse bringing three strangers, one of whom was still wearing a hospital gown.

When Dr. Pan, Director Lu's assistant, saw this scene, he immediately stepped forward and asked, "Didn't you let all your patients go back to their respective wards? Why were they brought here?"

"Dr. Pan, these three are all sirs." the nurse quickly explained.

Ah Li and Qiu Junxuan immediately took out their police officer ID cards and said, "We are the police. We heard that someone died here, so we came to take a look to prevent other people from destroying the scene."

"It turns out to be Sir!" Dr. Pan nodded and looked at He Jiahui who was wearing a hospital gown.

"I am also a police officer, but I left my police card in the ward." He Jiahui quickly explained.

"I remembered, you are the sir who was injured on the job, and your commander asked me to take care of you!"

The doctor nodded, then walked to Dean Lu and reported a few words.

"Please invite some gentlemen to come over!" Dean Lu said.

When he heard that the police were arriving, Dean Lu immediately decided to hand over the scene to the police.

The trio possessed by Conan were brought to the door of the oncology department. Ah Li took the initiative to say hello: "Dean Lu, we meet again. I wonder if you still remember me. My name is Yu Xueli, and my father is Yu Shitang."

"I remember that you are Mr. Yu's son, what a talented person you are!" Dean Lu said, with a hint of surprise in his eyes.

It's really rare for a rich man's son to become a policeman instead of going back to inherit the family business.

After saying hello, Dean Lu briefly introduced the case: "The deceased was Liu Guoqiang, a doctor in the oncology department of our hospital. He was on night shift last night. When we handed over the shift this morning, we found him dead in the lounge, so we immediately called the police.

Call the police.”

"Dean Lu, can we go to the scene and have a look?" Ah Li asked.

"Okay, the rest room is inside." Dean Lu pointed to the transparent glass door of the office area and continued: "After the body was discovered, I asked everyone in the oncology department to evacuate, and nothing inside was touched.

, well preserved on site.”

Ah Li nodded and was about to push the door open, but the door didn't move at all.

Dean Lu immediately explained: "The management of our hospital is relatively strict. This is the office area of ​​doctors and nurses. In order to prevent unauthorized entry, access cards are set up. Our staff need to swipe the card to enter."

Dean Lu said and glanced at his assistant. The assistant immediately took out his ID card and swiped the sensor at the door before opening the door.

"Do you have shoe covers and gloves?" He Jiahui asked.

"Yes, I will send someone to get it right away." Dean Lu replied.

In a place like a hospital, based on the need to prevent infection, not to mention shoe covers and gloves, even biochemical grade protective clothing is available.

After putting on shoe covers, the trio possessed by Conan walked into the doctor's office. This is a public office area with many tables and computers on the tables. Doctors usually write medical records in this office.

Dean Lu's assistant, Dr. Pan, introduced: "That's the rest room over there. In the innermost part, the men's rest room and the women's rest room are separate, and next to them are the men's changing room and the women's changing room.

Next to the dressing room is the tea room, where some snacks are usually stored, and at the end is a utility room where some things that are not usually used are stored. Dr. Liu Guoqiang was found dead in the men's room."

He Jiahui looked at the layout of the site. This row of rooms was at the innermost part of the office, separated by a corridor. Sitting in the office, one could not see the various rooms in the corridor.

"Doctor Pan, Director Lu just introduced that the deceased worked the night shift last night. Can he rest during the night shift?" He Jiahui asked.

Dr. Pan immediately explained: "It's like this. During the night shift, if there is nothing going on in the ward, the doctor can go to the lounge to rest. Of course, if there is an emergency, he must get up immediately.

In places like the oncology department, most of them are patients after chemotherapy. Their vital signs are relatively stable. Patients also have to sleep at night, and no treatment is performed at night. As long as there are no critically ill patients, night shift work is relatively easy.

easy."

While they were talking, several people came to the door of the men's lounge.

This was a small room with a table, a chair, and two beds. The room had no windows and only had a central air-conditioning outlet. The deceased was lying on one of the beds.

The deceased was still wearing a white coat and had not taken off his shoes. It seemed that he did not intend to rest for a long time, but probably just wanted to relax for a while.

"On the surface, there are no obvious injuries, and there are no residues around the corners of the mouth. It is probably not poisoning, but more like sudden death. For more details, we will have to wait for the forensic autopsy to give the results."

He Jiahui paused for a moment, then explained to Ah Li and Qiu Junxuan:

"Generally, people who die suddenly will suffer from certain diseases, such as cardiovascular and cerebrovascular diseases, respiratory diseases, central nervous system diseases, digestive system diseases, etc."

"What this sir said is correct, but Dr. Liu Guoqiang is in his prime. Our hospital also organizes regular physical examinations for employees. Dr. Liu has always been in good health and does not have the above-mentioned diseases, so we have investigated the cause of Dr. Liu's death.

I became suspicious and immediately called the police." Dr. Pan explained from the sidelines.

He Jiahui pondered for a moment and then said: "If the sudden death is caused by external factors, the most likely way is to inject substances harmful to the body, which will cause disease in the cardiovascular and cerebrovascular systems, respiratory system or central nervous system, leading to death."

As he spoke, He Jiahui walked to the corpse and began to carefully observe the exposed skin of the corpse. Sure enough, he found a tiny pinhole on the neck.

"It seems this is a homicide!" He Jiahui immediately made a judgment.

At this moment, there was a sound of footsteps outside, and then a familiar voice sounded:

"I am Chief Inspector Huang Kaiqi of the Crime Unit of the Hong Kong Island Region!"

Hearing this voice, the trio possessed by Conan looked at each other, and then they remembered that the crime took place this time on Huang Qifai's territory again.

The Royal Pengzi has also arrived.

After a while, Huang Qifai came over and immediately saw the trio possessed by Conan.

"Good morning, Sir Huang!" He Jiahui greeted with a smile.

"Why are you three again!" Huang Qifai grinned and said with an unhappy face: "Every time I meet you three, nothing good happens. There must be another murder!"

"Sir Huang, look what you said, there was no time when I didn't help you solve the case!" He Jiahui responded.

Huang Qifai also noticed the hospital gown on He Jiahui, and immediately asked: "Why are you wearing this? Are you sick and hospitalized? This hospital is also unlucky. It admitted you as a patient and killed the doctor!"

The two were also acquaintances, so Huang Qifai started teasing them directly.

He Jiahui explained: "I am not sick, I was injured while catching a thief."

"Where is the injury? Is it serious?" Huang Qifa asked with a concerned look on his face, and there was a trace of anxiety in his eyes.

"A broken rib." He Jiahui replied.

"As long as it doesn't hurt your brain, it won't delay the investigation of the case." Huang Qifai laughed again.

He Jiahui shook his head helplessly, and said to himself: "This guy Huang Qifa is trying to pick something off the shelf again!"

Sure enough, Huang Qifai asked directly: "You arrived before me, what did you find?"

"I found a pinprick on the neck of the deceased, indicating that the death was a homicide." He Jiahui did not hide his discovery.

"If there's a pinhole on the neck, does that mean he committed suicide?" Huang Qifai cooperated and began to argue.

"If you give an injection, will it hit your neck?" He Jiahui asked.

Huang Qifai thought about it and realized that it was really the case. It wasn't a cat or dog. How could it be hit in the neck during an injection? The needle holes on the neck of the deceased must have been left by the murderer when he committed the crime.

He Jiahui continued to ask: "Sir Huang, is the forensic doctor here?"

"Here he is, right outside." Huang Qifai nodded.

"Let the forensic doctor come in and do the work. First, determine the time of death of the deceased, then draw blood from the deceased, and take the blood sample of the deceased back for testing."

He Jiahui was worried that Huang Qifai would not understand, so he went on to explain;

"I judge that the deceased was injected with some toxic substance, which caused sudden death. In this case, there must be residues of this substance in his blood. Through a blood test, the cause of death of the deceased can be quickly determined!"

Huang Qifai nodded: "Okay, I'll make arrangements right away!"

Not far away, Dean Lu looked at this scene with some confusion.

"Who is this sir? He is definitely not a senior officer at such a young age! After all, Huang Qifai is the chief inspector of the crime team. Why should we obey his orders?"

The forensic doctor walked in and started working. He Jiahui came to the side of President Lu and whispered: "President Lu, if Dr. Liu Guoqiang died of homicide, the murderer is likely to be an insider of the hospital, so please be patient.

Prepare!"

"You mean, our colleagues killed Dr. Liu? How is this possible? We are all doctors and nurses!"

Dean Lu said in disbelief. In his opinion, doctors and nurses are professions that save people. How could they kill people?

He Jiahui explained: "The crime scene is a lounge, located in the medical office area. I noticed that to enter this area, you must swipe the access card, and the access card is only available to internal employees of your hospital. This

This means that the murderer who killed Dr. Liu is most likely an insider of the hospital."

After listening to He Jiahui's analysis, although Dean Lu didn't like it very much, he still nodded as if he accepted the reality.

After all, he is a well-known doctor. He has seen many separations between life and death, and he can handle things internally. Therefore, even after learning that the murderer was one of his own, Dean Lu's expression remained calm and did not change.

He Jiahui continued to ask: "Dean Lu, I would like to ask, can your access card record the information of the person who swiped the card, and the time when the card was swiped? If so, this will help us narrow down the scope of the suspects."

"I really don't know about this. I need to ask the security department." Dean Lu said, turning to look at the assistant: "Doctor Pan, go and ask!"

"Okay, I'll call the director of the Security Department right away." Dr. Pan said, taking out his cell phone.

After a while, Dr. Pan ended the call and said, "Sir, I'm very sorry. Our access control system currently only has the function of identifying access cards and cannot record the person who swiped the card and the time when the card was swiped."

He Jiahui nodded in disappointment. It seemed that this access control system only had the simplest chip recognition function. As long as the chip in the ID card was read, the access control would open the door.

He Jiahui looked at the surrounding ceiling again, and then asked: "There should be no surveillance installed in the doctor's office, right?"

"The surveillance in our hospital is mainly installed in public areas where patients can move around. There is no surveillance installed in the doctor's office. However, there is a surveillance in the corridor outside." Dr. Pan answered.

"Can you see who has been in and out of the doctor's office?" He Jiahui asked again.
To be continued...