If you have the skills to assemble, solder and build an electronic project, you are well on the way to a lucrative career. There is a market, Law Enforcement Agencies. If you have no clue on how to approach and sell to these agencies, this book is for you. All the tools to make you successful are in this book, based on the author spending over forty years, building and selling his electronic devices to all levels of enforcement. To earn money, Be you a hobbyist or a pro, this book – shows you how to do it.