In the interrogation room, Mr. He had extracted Zhang Yan's blood and immediately rushed to the stairway, pressing the elevator button to send it to the evidence laboratory.
At the door of the evidence laboratory, he specifically reminded: "Liu, this case is very special, we must accelerate the evidence analysis speed."
The lab technician, Liu, in a white coat nodded lightly.
"Remember to compare Zhang Yan's blood with the blood found in the gravel at the crime scene to see if they have the same genotype."
"Captain He, rest assured, no problem!"
"We will do our utmost!"
Then he glanced down at the blood card and said with a smile, "There's quite a lot of blood collected on this blood card."
"I think identifying the genotype should not be an issue."
Next, Liu turned to look at the lab's equipment and said solemnly, "Moreover, our laboratory equipment is very sensitive now; it will only take a short time to produce the results."
