a 3d rendering of an antique polygraph machine

antique suitcase old physiology paper opening technology law interrogation invention museum criminal graph science white background identity shape history reliability archival lie detector three dimensional retro style equipment close-up forensic investigation crime laboratory examining analyzing instrument measurement cut antiquities machinery push button taking pulse galvanic skin response buttons psychology respiration rate case early body squat enforcement polygraph historical ethics vintage machine device examiners methods artifacts isolated blood pressure close rendering