"Director Cai, can you trouble you to call up the other monitors in Area C and let me see, maybe I can find any clues. Qiu Lan bit her red lip lightly, her brows furrowed slightly, and her face was solemn.

"Okay, I'll bring it up for you. The manager nodded, and pulled up the other three remaining surveillance footage for them to review.

Several surveillance videos are said to be more or less, and they are played at 0.5 times the speed during the critical time, and Xu Chengyan and Qiu Lan watched it for an hour and twenty minutes.

But no clues were found.

"How can this be?" Qiu Lan lowered her eyes suspiciously, feeling faintly uneasy in her heart, "I obviously heard that voice very clearly. ”

There were no suspicious people in these videos, only a man in a police uniform who drove away a few minutes before Qiu Lan appeared, and it was impossible to make any more footsteps.

What the hell is going on?

Xu Chengyan, who was sitting next to him, glanced sideways slightly, glanced at the person next to him, and couldn't help but have some worries and doubts in his heart.

Suddenly, Qiu Lan's eyes flashed, and she seemed to have thought of something.

"Officer Xu, have you noticed that the surveillance we looked at just now did not record the corridor to the left of parking spaces 137 to 143?" she bit her red lip, her eyebrows moved slightly, and the more she thought about it, the more strange she felt.

"The position where I am standing is one hundred and fifty-two, and the row of cars that happen next to me should be the row of cars, but I can't see if anyone is passing by there. ”

Qiu Lan, who was full of doubts, couldn't help lowering her eyes, and kept muttering in a low voice, "And I was listening to the voice behind me at the time, if someone really deliberately made a noise, then in such a short time, it was only possible to pass through that position." ”

Listening to her words, Xu Chengyan also noticed something suspicious, "The location that can pass through happens to not be monitored?"

"No, the parking lot of the police station should be monitored at 360 degrees without dead ends, how can you not see anything in a key place?"

At this moment, the manager next to him took out a record book and looked through the records of the last two days, "Found it." ”

His gaze was fixed on one of the repair messages, "Doctor Qiu, Officer Xu, you see, the monitoring of that location should be within the range of C2, and it was repaired yesterday, but the worker has not come to check it today, saying that it will be two days." ”

"However, we have increased the frequency of patrols there, from once every three hours to once an hour and a half. The manager pursed his lips and frowned slightly.

"Counting up, the time when Dr. Qiu appeared in the parking lot was 8:45, and the patrol officers should have just walked through Area C and arrived at Area D. ”

Listening to his words, Qiu Lan couldn't help but squint, and a trace of doubt flashed in her eyes, "Officer Xu, could this matter be too coincidental?"

"Doctor Qiu, I understand what you mean. Xu Chengyan took a deep breath and lowered his eyes, "The monitoring has just been repaired before it has been repaired, and it happens to be the time when the patrol officers have passed, so there must be a problem." ”

After leaving the monitoring room, Qiu Lan walked with him to the parking lot.

In the office just now, there was the person in charge of the monitoring and control room there, and she didn't have time to say a lot of words until she stepped onto the elevator, her eyes were sinking and her red lips were gently twitching.

"Officer Xu, do you have anyone suspicious in your heart?"

It turned out that Dr. Qiu also noticed something unusual. Xu Chengyan pursed his thin lips and rolled his Adam's apple up and down, "Actually, the scope of suspicion should be narrowed now." ”

"We now only have to focus on the people who know about the monitoring arrangements and warranties, and that is the security personnel in the monitoring room, and the maintenance personnel. ”

"No, it could be narrowed down. Qiu Lan frowned, a glint flashed in her eyes, and she said thoughtfully: "I think the suspicion of the repair personnel can be ruled out." ”

"Because of the patrol schedule, only the security personnel know about it. She bit her red lip and looked serious, "Officer Xu, think about the last time you were in the autopsy." ”

"The only people who can enter there so easily, except for the relevant staff, are the security personnel and the cleaners, right? But last time, because I saw the tall man wearing the rubber shoes equipped by the cleaners, we had a preconceived idea, and subconsciously thought that the person who intimidated me was the cleaner. ”

"But it's not at all, it's just a disguise. ”

She bent her fingers slightly, twisting uneasily, thinking about these two things in her heart, "But think about it from another angle, that person wants to scare me, and he will definitely not want to be discovered, so will he deliberately wear clean shoes to disturb my vision." ”

Listening to her words, Xu Chengyan nodded slightly.

I have to admit that Qiu Lan's analysis just now is indeed reasonable, from the beginning, the general direction of their investigation was wrong, so even if they looked up the monitoring of the corridor and found the cleaning of the day, they didn't find anything.

"Doctor Qiu, I understand what you said, I will tell Pei Pei and them to focus on investigating the security of the police station building, hoping to find that person as soon as possible, so that you will not be frightened. Xu Chengyan looked at her softly and spoke softly.

"Actually, it's not a scary thing. Qiu Lan raised the corners of her mouth slightly, her eyebrows raised slightly, "If he hadn't made another move this time, I'm afraid we wouldn't have thought of this." ”

"Yes. Xu Chengyan stretched his serious brows, and the expression on his face was also soothed a lot, "Doctor Qiu, your thinking and logic are so strong, and your observation is so sensitive, if you are unwilling to forensic medicine in the future, should you consider joining the serious crime team?" ”

He nodded thoughtfully, with a hint of a smile in his eyes, "I think if you are willing to join, then our efficiency in solving cases will definitely be greatly improved." ”

"Really?" Qiu Lan deliberately raised her eyebrows, thinking meaningfully, her voice brisk, "Then I have to think about it, but at this stage, I am very satisfied with the work of the forensic doctor." ”

"Officer Xu, then I don't think you mind letting me keep this sentence and this right. She hooked the corners of her lips and tapped her chin gently, "Maybe in a few years, I really want to jump to the serious crime team, and when the time comes, you don't regret it." ”

"Of course I don't regret it, our serious crime team will definitely welcome you to join. Xu Chengyan looked at the person in front of him gently, smiling, and his tender eyes were reluctant to leave.

The two of them walked to the parking lot with a smile, and for the sake of safety, Xu Chengyan sent Qiu Lan to her parking space first.

"Doctor Qiu, I will hurry up to find that person during this time, but for the sake of safety, you still try not to go alone, and don't go to too remote places, always be careful. He pursed his thin lips and admonished worriedly.

"Okay, Officer Xu, don't worry, I'll be careful, I'm sorry for you today. Qiu Lan gently hooked the corners of her lips.

After a few brief responses, she drove away from the police station in the night.