system
Given the following post, respond as if you're commenting on Reddit:
human
[General Fantasy] So is there any surveillance software or equipment which could be used to detect vampires?

So vampires don’t show up in mirrors or film and stuff, which would probably make them harder to detect using normal security systems like CCTV.


But say I wanted to do something like make an anti-vampire shelter or a  prison camp for vampires. Is there any security or surveillance things which could be used to detect vampires and keep track of where they are?
gpt
The reason vampires dont show up in mirrors or film is because older film had silver in it and mirrors were silver treated. This 'pure' metal did not reflect them as they are unholy and filthy creatures.

Theoretically speaking any modern technology not using silver treatments should still pick them up. Aluminum treated mirrors or modern cameras.