How easy would it be to plant your own surveillance cameras apart from the entire security system, undetected, unknown and private, and remote watch like any hidden camera you can get off Amazon?
And for a step further, and with no technical disruption or anything like it, no chance, and for this big of a deal surly not out of the question, have people painted to blend in to several precise places throughout, just like SEALS / special ops, camouflaged. How do you do this INSIDE? You digitally take a photo, you import said person via overlay, blend, measure, match, paint / dress / cover and they’re part of the structure. I think it happens more so than we think.
Would be great if that were the case. And all on film too.
Just a thought.
You have to understand the circumstances first. If people are busy securing an area, loading up boxes, unfamiliar with the rooms, etc... it is extremely unlikely that they would discover any but the most obvious of cameras or surveillance. Especially if they are working and distracted by a task at hand, they couldn't take time to notice tiny details that might be out of place. You could hide dozens of devices and they might discover one of those.
On the other hand, if someone has unlimited time in a quiet environment and has the ability to search and inspect, along with inspection equipment designed to find cameras and listening devices, you can be sure they could find nearly 100% of devices.
Anything you'd buy off Amazon is at least 10 years behind current technology.
The people that specialize in these things have amazing technology that would be nearly impossible to find. Still, everything requires some form of power.
One of the best ways to protect yourself when you believe video or recording may be happening... is to just overwhelm the system. Listening devices are great for picking up every tiny sound in a room. They aren't so good at picking up conversations when you are playing heavy metal music, have a blender mixing ice... and have a personal vibrator duck taped to an outlet, window pane or light fixture. At that point, the listening devices are picking up all sorts of garbage. You can defeat many cameras in a similar manner. If you suspect one, then give it garbage to watch. There's nothing wrong with wrapping cling wrap over a flower display, or shining a lamp with a 100 watt LED bulb at a mirror. :>)