Yes they use the idea that there is a magical machine that can detect lying in the hopes you will confess. Nothing so far can do that. Maybe the Neural Link Musk is working on.
I agree with all teen—BUT I do not think that lie detectors would work—They can be beaten by accomplished lyers and Congress is full of them. Term limits is good as well as cognitive tests for any politico over 71. I would also add universal conscription for all citizen over 18 (deferred for college student until 22) BUT—it would be National Service—that means jobs to help in poor sections of the nation CCC like programs for restoration and fire prevention, education and clean up as well as Military Service (BUT no draftee should be sent overseas unless there is a declared war by Congress.) Lots of things they could do—from building things to working drones, Elder care, child care, school guards, border guards, school assistant teachers, drama classes to present classics to the public, etc... I would draft women too—unmarried women only, without children. Service would for two years. (But they can re-enlist if they wish).