Articles Published by NIJ

Two NIJ-funded studies examine new ways to analyze trace evidence in the aftermath of an explosion or bombing.

Researchers try a new way to maximize DNA in low-yield situations and reduce costs.

“Wherever he steps, whatever he touches, whatever he leaves, even unconsciously, will serve as a silent witness against him.” Edmond Locard (1877-1966), forensic science pioneer

Nanoparticles and other subvisible particles potentially present in nearly all trace evidence are often overlooked in forensic investigations. NIJ-supported researchers have characterized several types of particles and developed detection methods.

Investigators in two NIJ-supported studies have demonstrated that people carry unique microbial communities on their skin, and traces of those communities, left on touched objects, can be linked to the individual.

Criminals track dust particles to and from virtually every crime scene, but particles on a suspect’s shoes are seldom used as evidence linking the accused to the crime. In this NIJ-supported project, researchers assert that investigators can use small par

By touching a cell phone, car keys, or even a pen, you are leaving behind a chemical signature that can reveal much about how you live your daily life.