Early the next morning, Song Mingguang arrived at the telecommunications company.
"Base station?"
"No problem, all phones need to go through a base station to send signals when making calls, sending texts, or logging onto the internet."
Telecommunications technology is far more advanced than most people imagine.
Through the base station, calls, texts, or internet logins will leave some records.
Some records can even be recovered using certain technical means, even if deleted by the other party.
Song Mingguang's investigation was extremely detailed. He aimed to check everyone's call records, text records, and even internet login records.
Especially the bank where the funds from the coal mine were deposited.
The two coal mines had no business transactions or storage arrangements, and the funds were in two branches—one in the lending bank for the cash transportation, and the last one in the bank where the incident occurred.
