"Xiao Wang also likes to tinker with computer software. In the past, when our county came to assist in the investigation, it was arranged by Xiao Wang." Lao Yan made an endorsement for Xiao Wang, and also rectified the name of the only trace inspection in the county. .

But Wang Zhong smiled shyly, and said modestly: "My work is incomparable to that of Forensic Doctor Jiang. You are a hard-working fingerprint maker. I mainly just run to the fingerprint database."

The fingerprint database is constantly updated, and the main body responsible for the update is the trace inspection police from all over the country. They are responsible for taking pictures of the collected fingerprints, filing them, filling in instructions, and sometimes manual processing before putting them into the fingerprint library. In addition, using the fingerprints of old cases before the computer system also requires manual checks and other operations before they can be put into storage.