http://www.dataasylum.com/gangstalking-targeted-individual-information.html
It looks like their take on this is that it is all being done with nano-bots. I am not sure how accurate their info, but I will post it:
"• If they think you have committed a sin they use the BioAPI against your body. For example if you've committed the sin of gluttony they will turn off your taste buds. If you committed the sin of lust, they will turn off the endorphins released from your spine during an orgasm negating the effects of sex. If you were too vain they might trigger morgellons. These are just a few examples of what they can and are doing to people when you are judged guilty. No consideration whatsoever will be given for the circumstances leading up to your guilt; and the law in their eyes will be applied as technically as possible as that is obviously the easiest and fastest way to find someone guilty."