NCJ Number
238705
Date Published
2012
Length
182 pages
Annotation
This book provides a understanding of speed enforcement concepts along with the devices that measure speed.
Abstract
This book provides information to prepare law enforcement officers to use speed enforcement concepts and devices in their own professional careers. Starting with the basis for the concept of speed in scientific terms, this book explores some concepts of speed as related to energy and work. Understanding the physics of motion will help to better explore the realities of speed as it relates to effects on safety. Both the positive and negative effects that various speeds have on the outcome of travel will also be explored. This book addresses the methodology and scientific process to determining speed limits along with the emotional aspect of limiting speed. The historical developments and scientific principles and operational considerations of instant speed detection devices such as speed radars and speed lasers, along with the scientific and operation differences and limitations associated with each of these technologies. Finally, a review of the elements needed for court acceptance of both speed law violations and instruments used to measure those speeds is provided using case examples to emphasize the major legal points. Bibliography and index