more ... A graph of plotted points that show the relationship between two sets of data. In this example, each dot represents one person's weight versus their height. Scatter (XY) Plots. Search :: Index :: About :: Contact :: Contribute :: Cite This Page :: Privacy.
A forensic light source is a crime scene investigatorâs and lab technicianâs tool for enhancing observation, photography and collection of evidence including latent fingerprints, body fluids, hair and fibers, bruises, bite marks, wound patterns, shoe and foot imprints, gun shot residues, drug traces, questioned documents, bone fragment detection, ...
Many body fluids contain fluorescent molecules. Forensic scientists use ultraviolet lights at crime scenes to find blood, urine, or semen. Blood does not glow under a black light, but it reacts with a chemical that does fluoresce, so it can be detected after this reaction using ultraviolet light at a crime scene.