Tweens, 7-12 years old, learn about forensic science in this hands-on workshop. Explore fingerprinting, chromatography, and more. Registration is required and begins on April 7th. Call 623-930-3837, stop by the youth reference desk, or go online to register.This program was supported with funds granted by the Arizona State Library, Archives, and Public Records Agency, a division of the Arizona Secretary of State, under the Library Services and Technology Act, which is administered by the Institute of Museum and Library Services.