Collect bio or chemical samples from a crime scene
How to collect bio or chemical samples from a crime scene Investigators on a crime scene can now use a new tool for collecting chemical or biological samples. The sampler gun collects samples on a cotton pad -- eliminating direct contact with anything harmful, as well as risk of contaminating evidence -- a GPS system to record the samples' location, a camera that snaps pictures for evidence, and a digital voice recorder and writing pad for taking notes.
