On-site irrefutable evidence

Under the background of "Strengthening the Police with Science and Technology", the criminal police team of a large city went deep into the front line of investigation work. Together with the investigators, they faced crimes with distinctive characteristics of the times. With their rich knowledge, sharp eyes, meticulous reasoning, superb scientific methods, and arduous investigations, they accurately and timely found the suspects time and time again, making the case known to the world, punishing evil and promoting good, and maintaining social order and the dignity of the law. The drama has created a new group of public security officers: Chen Yuan, a master's student at a public security academy and captain of the criminal police team who was trained at Scotland Yard; Wang Lan, a dignified and beautiful female forensic doctor; Wang Xiaoguang, a technical prodigy, etc., are all brand-new characters that have never been shown in previous police-themed TV dramas.