A Manual For Training and Operations. In the high stakes realm of explosive detection work, where even the smallest mistake can have fatal consequences, the margin of error is zero. When you and your K9 are in the field, only the highest level of training will get the job done. Resi Gerritsen and Ruud Haak have worked with police departments around the world to help them improve their K9 explosive detection training programs, and in this book they share their expertise for handlers and trainers looking to enhance their own performance.