The city's population is 90.9% native born and 9.1% foreign born. Of the city's population 48.6% are men and 51.4% are females. The races making up the largest parts of the population are: White [85.6%], Hispanic [9.5%] and Two or more races [4.2%]. The population of Arlington, WA is 17,926. 55.0% of the city's population is married. The other 45.0% are single. The city's population is 19.5% college educated and 89.3% have a high school diploma or a GED.
BFS 23 PEB 11 (Rev. 4/99) NIBIN Program-Automated Firearms Evidence Imaging INTRODUCTION NIBIN is a computer-based image comparison system. This system allows forthe intercomparison at local, state and national levels of fired cartridge casesand expended bullets (in some laboratories).
Ninhydrin (2,2-Dihydroxyindane-1,3-dione) is a chemical used to detect ammonia or primary and secondary amines. When reacting with these free amines, a deep blue or purple color known as Ruhemann's purple is produced. Ninhydrin is most commonly used to detect fingerprints, as the terminal amines of lysine residues in peptides and proteins sloughed off in fingerprints react with ninhydrin. It is a white solid which is soluble in ethanol and acetone at room temperature. Ninhydrin can be considered as the hydrate of indane-1,2,3-trione.