Dangerous substances such as fentanyl and carfentanil are now flooding the streets in the form of counterfeit pills, posing a huge risk to both the public and officers on the front line, Thermo Scientific says. "Traditionally, law enforcement officers have used wet chemical colorimetric assays for on-site presumptive narcotics identification. However, the introduction of handheld chemical identification devices that use Raman spectroscopy has demonstrated significant advantages over wet chemistry kits, allowing law enforcement teams to stay one step ahead to protect their officers and the communities they serve," the company adds.