Officer Cao rushed to the hospital with people, only to see that Wang Lili had been covered with a white cloth, and after the forensic team and the trace examination team checked and collected evidence, they were ready to enter the morgue.

Officer Cao lifted the white cloth and found that Wang Lili's skin and mucous membranes were bright red, although Officer Cao was not a forensic doctor, but he had been involved in criminal investigation for so many years, and he had seen corpses of various dead methods, so he recognized Wang Lili at a glance that this was a respiratory and cardiac arrest caused by hydride poisoning.

"When?" Officer Cao asked softly.

"Report to Team Cao, at 22:00 Wang Lili lost the last set of liquid today, the liquid just pierced, and I heard Wang Lili screaming and convulsing in a few seconds, and then the person will not work." Xiao Zhou whispered. "I pressed the emergency bell, and the paramedics ...... before they arrived"

"Who has touched Wang Lili's infusion bottle?" Officer Cao asked, and looked around the ward. The eye fell on an elderly nurse with two blue bars on the edge of her pink nurse's hat, and this must be the head nurse.

The nurse, who was watched by Officer Cao, stepped forward and said: "Officer, I am the head nurse of the surgical ward, Wang Lili's medicine can be touched by two people, the nurse in the dispensing room and the nurse on duty, and the general nurse on duty come to give infusions to patients in the ward, insert needles and extract needles, and deal with emergencies. ”

"Head nurse, what do you call you?"

"Officer, my surname is Meng, Meng Xiaoyun"

"Where are the hospital surveillances located?" Officer Cao asked.

"There are dispensing rooms and corridors on this side of the ward."

The head nurse said and took Officer Cao to the door, pointing to the camera at the end of the corridor, they came out of Wang Lili's ward, walked about 20 meters in the direction of the nurse's station, and there was also a camera on the right hand side of the corridor, facing the dispensing room.

The head nurse walked into the dispensing room, pointed to the prepared liquid on the shelf and said, "These are all for the patient." ”

Officer Cao looked in the direction pointed by the head nurse, and there were 12 layers of shelves for placing patients' infusion bags, which were placed on the left side of the dispensing table, and the shelves were divided into small grids, each of which was labeled with the patient's name, gender, age, barcode, etc.

Officer Cao walked over and carefully looked at the names of these patients, and found Wang Lili in the second left box on the third floor, which contained two small bottles of 100ml of liquid medicine, three bottles of 10ml white powdered medicine, and three bags of 500ml liquid medicine.

"Head nurse, are Wang Lili's medicines going to be lost tomorrow?"

"Yes, we all sorted the medicines in advance and dispensed them before the infusion tomorrow."

"Is it all now?"

"Basically, if the nurse in charge and the nurse on duty are busy, they will be prepared in advance, but they must be given to the patient if they are placed for no more than two hours."

"Okay, thank you head nurse, we will take the medicine back for testing, and the nurses who can be contacted will also go to the police station with us to record a statement" Officer Cao finished speaking, paused for a moment, and then asked: "Did you see any suspicious people at night?" ”

"From 18:00 to 20:00 every night, the police officer visits the family members, and there are more people in and out, and it is difficult to notice it when we take over the shift," the head nurse said helplessly.

"Officer Cao, Xiao Zhang and I have been guarding the door of Wang Lili's ward, and no idle personnel have approached." Xiao Zhou also said.

"Where's the monitoring room? Take us to see it. Officer Cao said to the head nurse.

Under the leadership of the head nurse, the group came to the administrative office area of the hospital and turned into a room. You can see the real-time monitoring screen as soon as you see it. I have to say that the monitoring installation of this hospital is still very perfect, and there are a total of thirty or forty cameras in all outpatient and emergency plus wards, all of which are in working condition.

"There are a lot of cameras in your hospital." Officer Cao couldn't help but sigh.

"Now tertiary hospitals are required to pretend, the doctor-patient relationship is tense, disputes are frequent, medical troubles, and medical care is overflowing, which is also to protect medical staff." The head nurse smiled wryly.

As he spoke, the operator in the monitoring room had already called up several video data leading to the surgical ward.

Everyone's attention turned to the monitoring screen, staring with bated breath.

Next, a scene that shocked everyone happened: an old man with bad legs and feet on the monitor limped into the dispensing room, groping and pulling out a small bottle from his pocket as he walked.

The monitoring switched back, and in the corridor on the first floor of the ward, this old man, bent over and covered his stomach, and slowly walked to the staff on duty in the ward, I don't know what he asked, the staff on duty pointed him in the direction of the elevator, and stretched out five fingers.

Officer Cao hurriedly urged the operator, "What about before the ward?" Which camera can capture it? ”

The operator called up. The surveillance video at the west gate of the hospital has no trace of the old man, and the surveillance video at the east gate is retrieved, but there is still none.

"Try the front door" suggested by the head nurse?

"The front door?" The operator was stunned. The main entrance is the emergency department of the hospital, which is the farthest away from the inpatient department.

Surveillance footage of the main entrance was then retrieved. Everyone has eaten again, and saw the figure of the old man again, and now at the main entrance, he looked up at the signboard of the hospital, and then dragged his inconvenient legs and feet, and stopped up the steps one by one. The operator then quickly retrieved the video footage from the hospital's outpatient lobby.

After the old man came in, he looked very dazed, looked left and right, and asked a young man with dyed hair passing by, the young man didn't seem to understand what the old man asked, shook his head and left. The uncle found the general information desk, and the staff on duty was supposed to go to eat at that time, and the old man was waiting there.

"Fast forward," Officer Cao urged.

Then the video is fast-forwarded at double, triple, and five times. The people on the screen are like puppets, moving rapidly. Only the old man sat on the ground leaning against the information desk. Then a nurse passed by and walked over.

"Don't fast forward, let's broadcast normally"

The nurse listened patiently for a long time, and then showed the old man the way to the ward. The old man followed the direction he pointed, and after a while he got lost again and asked for directions.

……

Officer Cao no longer looked at the surveillance, and the surveillance took a complete picture of the old man's face, and he would soon be able to arrest him.

Why is it so easy this time?

In an abandoned warehouse in W City. Two dark shadows huddled together.

After a cigarette, a man spoke: "You help me buy a fake passport and send me out, the sooner the better!" Repatriate the shares to my overseas account. ”

“……”

"Did you hear that?"

"No, haven't you been okay for the past year or two?"

"Why not, you just attacked me, look at that posture, practiced."

"Then why didn't he arrest you?"

"You're trolling, you're trolling," he said, raising his hand and knocking the other party's head, "You wish I was dead, right, arrest me?" Do you still want to run? ”

"The ledger must be found, otherwise it will be a trouble sooner or later!" As he spoke, his attitude changed suddenly, and he gritted his teeth and reprimanded fiercely, "Did you instigate that cheap copied account book?" ”

"Hmph" he threw the cigarette to the ground, stepped on it fiercely, and crushed it repeatedly, "I learned from you!" ”