In the next two days, Jiang Yuan and Liu Jinghui collaborated, and used two cases to train the attending police officers.
The purpose of the training was not so much about solving cases but more about teaching frontline officers how to work with units like the Criminal Science, Image Investigation, and others, how to preserve evidence, and how to expand investigations to the maximum extent.
If frontline officers are likened to infantry, then units like Criminal Science, Image Investigation, and Technical Investigation are equivalent to artillery, armored troops, and air bombardment forces...
Infantry is the foundation of combat, capable of occupation and offense, can operate independently or coordinate offensives with other branches. But as the scale of warfare rises, coordination between infantry and artillery, infantry and tanks, and ground and air becomes the most efficient.
