The Intriguing Role of Dr. Trigg Kiser Dr. Trigg Kiser, the former Maricopa County Medical Examiner, served a pivotal role in the Phoenix area for many years. His office, responsible for investigating sudden, unexpected, or violent deaths, faced a high volume of cases ranging from routine fatalities to highly publicized investigations. His tenure was marked … Read more
Crafting the Artificial Human: Materials and Their Mimicry The Foundation: Materials and their Interactions The materials employed in creating ballistic dummies are central to their accuracy. The choices dictate how well these simulations can capture the complex mechanics of a gunshot wound. Gelatin, often of a standardized concentration, is the most common material. It’s used … Read more
Understanding the Science Behind a Black Light What is a Black Light? In the hushed aftermath of a chaotic scene, where shadows dance with unseen truths, the keen eyes of investigators seek the smallest clue. Amidst the wreckage of a shattered glass or a violent scuffle, a vital piece of evidence can often be concealed … Read more
The Anatomy of a Firing Pin Mark Defining the Firing Pin and its Function The world of crime investigation is a complex arena, where meticulous observation, scientific analysis, and a keen eye for detail are paramount. Within this intricate landscape, ballistics, the science of projectiles and firearms, plays a crucial role in unraveling the truth. … Read more
The Science Behind Blood Detection Light’s Interaction with Blood Blood, the lifeblood of mammals, has unique properties that make it detectable under specific conditions. Understanding these properties is critical to effectively using a flashlight for blood tracking. The process of blood detection relies heavily on the interaction of light with the molecules within the blood … Read more
What is Gunpowder Residue (GSR)? Definition and Composition The acrid scent of sulfur hangs heavy in the air. Investigators meticulously document every detail, their eyes scanning the scene for clues. A crucial question lingers: how long has it been since this firearm discharged? The answer often hinges on a microscopic search—a search for gunpowder residue. … Read more
