"The signal came from the Xia family mansion?"
Weiwei looked at the red marker on Tang Yichen's tablet.
"Yes," Tang replied. "More precisely, it came from a receiver connected to the mansion's private network."
Han Ru looked at the listening device on the table with alarm.
"Did they hear everything we just said?"
"No." Tang opened his equipment case and showed them a sealed black pouch. "The physical device has been isolated since I collected it. My team copied its digital identity and recreated its connection through a controlled forensic system."
"So, you made the receiver believe the listening device was active?" Jiang Tao asked.
"Exactly. It sent an automatic request for stored audio. We blocked the transfer but traced the request back to its source."
"Can you identify the exact computer or phone?" Mo Shian asked.
