Infrared (IR) spectroscopy is used extensively to characterize the chemical composition of trace evidence such as paints, fibers and adhesives as well as seized drugs and related chemicals. Thermo Fisher has recently introduced the Thermo Scientific™ iS™50 ATR module, a novel, extended-range attenuated total reflectance (ATR) module that is integrated into the Nicolet™ iS50 FT-IR spectrometer.