Articles Published by NIJ

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

NIJ-funded researchers create unprecedented gunshot residue dataset to develop a quick, dual-detection method for gunshot residue detection.

“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

Integrating forensic evidence into the intelligence process is an evolutionary next step in reducing, disrupting, and preventing violent crime.

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.

Two researchers with a long record of research into the forensic value of very small particle populations examined cell phones, handguns, drug packaging, and ski masks from the San Diego County Sheriff’s Office to determine if such particles can make phys

Investigating and prosecuting sexual assault crimes is much more complicated than simply performing DNA testing.

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.