Why do suspects being interrogated put their arms inside their shirts?

Answer 1

Suspects being interrogated may put their arms inside their shirts as a self-soothing behavior or a way to create a physical barrier between themselves and the interrogator. This action can also be a subconscious attempt to protect oneself or to create a sense of comfort or security in a stressful situation. Additionally, hiding one's hands can prevent the interrogator from observing fidgeting or other nonverbal cues that may reveal nervousness or deception.