The 197 page Understanding Police Traffic Radar And Laser, Library of Congress Catalog Number #098-87615 is available for sale from Speed Measurement Laboratories Inc. (SML) for $39.00 which includes shipping and handling and applicable taxes.  This is the same instruction manual used in teaching law enforcement officers at radar and certification classes. Contact SML at speed@speedinglimits.com or call 817/291-2396. Fax orders to 817/244-7630. Credit cards accepted. Check www.radarsignals.net for industry updates.