Gone... just as the word implies.
At one o'clock this morning, the electronic devices with trackers began to disappear little by little, and by around 1:20, they vanished completely.
The person in charge of monitoring dozed off for a moment—as long-term monitoring is quite boring. The famous "The Three-Body Problem" was written under such circumstances. Everyone calls it "slacking off," not dereliction of duty.
So, it sounds like his responsibility isn't that heavy—after all, there is still the surveillance footage.
When he woke up at 1:30 and realized that over twenty trackers had disappeared, he immediately reported it to his superiors.
The superiors responded immediately: "This is a serious dereliction of duty, you're suspended for now."
The guy felt somewhat wronged: I was just really tired and took a nap, isn't there still the footage?
