If you google "Voice to skull Dr Joseph Sharp" you'll find some information about this technology that was born in 1974. It's a technology that sends voices directly into your brains so your ears are not needed to hear inner voices.
I am diagnosed to have scizophrenia but if something like this excists + my own conclusions about the truth i'd say that i'm 99% sure to have voice to skull directed into my brains.
All you need is to detect my brains that is possible with "brain-scanners" that analyze the target with several techniques. After that they modulate words with voice to skull technology and send them directly to the area of brains that is a natural area to think with silence voice (your own thoughts).
And because some people seem to be above the law - nobody can't stop them.
Great place this our lil world.