Recording Device
A microphone was secretly hidden in Jamy’s bag. Every detail of the incident was audible to his classmates when he returned to school the following day. The backpack served as an excellent cover for the hidden recording device.
Guilt
Thomas did have some concerns about using the device. After all, he wouldn’t want his son to think that he was merely spying on him. He realized that it was an invasion of privacy, but rationalized it because it was certainly for the greater good.