Secret police in my world want to interrogate subjects but they're very resistant to all techniques.So they want to induce fear in subjects.How they could achive this?
closed as unclear what you're asking by Shadowzee, StephenG, 011358 smell, Renan, Frostfyre Apr 15 at 12:07
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Like Scarecrow from Batman. Try to read about it, you may find something relevant.
Meanwhile, refer to this, Here you will find your answers.
Following is an answer from the link:
Using a mixture that consisted of dopamine, yohimine, carbogen, 3-quinuclidinyl benzilate, L-34-dihydroxyphenylalanine, and corticotropin, I could stimulate a fearful response in both humans and animals.
I'd take a wild shot and somehow create Norepinephrine and then torture the victim. If the victim's hormonal system that transmits the "fight or flight" response is overloaded, and receives large fear stimuli, their fear learning will be multiplied. This will not, however, make him fearful by default, just extremely agitated. He needs external stimuli for the fear to be triggered, if I am to understand the texts correctly.
However, if the victim finds themselves in a torture situation, that shouldn't be hard, now, would it?