A Legal And Law Enforcement Guide To Telephony

This book provides legal and law enforcement practitioners with information about telephone company inner workings, their networks, and operation. The range of subjects includes local, long distance, and cellular services; private phone systems (PBX and KTS); E-911 systems; telephone fraud; pay phones; customer premises wiring; and new technologies including Voice over the Internet (VoIP).

The field of police vehicular pursuits is replete with complex, often conflicting, legal issues. The consequences of negligence can have far- reaching implications for law enforcement agencies as well as individuals. While this book is not an indepth legal analysis of pursuit ramifications, it provides discriminating readers with the most up-to-date guide to understanding the many legal intricacies involved with police pursuits. The text provides comprehensive examination of legal aspects underlying police department pursuits and policy considerations; exploration of liability and negligence.

The intention of this book is to provide training officials - working in law enforcement, courts, adult corrections, juvenile justice, child and family welfare, fire safety, emergency medical care, and related agencies - with valid mechanisms for assessing the degree to which trainees actually acquire the knowledge and skills required to effectively perform duties that can be complex and challenging, in order to determine which trainees will and will not be formally credentialed to perform work. This book addresses the current void in the literature on the topic and to encourage increased attention to the question of whether tools being used to assess knowledge and skills acquired from training conform to scientifically established standards of validity. The meticulous efforts of the authors have produced a solid basis for application through comprehensible and concrete theoretical principles. The aim of the book is to show how to perform validation of training assessment instruments by actually doing so and by addressing the central issues that warrant consideration in the process. The book begins with background information that is important to the authors' research on the validity of tests used in policed training. After providing the background in the first three chapters, the following four chapters describe and present the findings of their validation study of police academy testing. The last chapter draws conclusions about the validity and reliability of the instruments that were studied and by examining the implications of their research for future efforts to validate tests in justice and safety training contexts. The book also contains appendices that present data to support the conclusions and also include methods and instruments developed during the authors' research.

Cell Phone Location Evidence for Legal Professionals: Understanding Cell Phone Location Evidence from the Warrant to the Courtroom is a guide, in plain language, for digital forensics professionals, attorneys, law enforcement professionals and students interested in the sources, methods and evidence used to perform forensic data analysis of cell phones, call detail records, real time ping records and geo-location data obtained from cellular carriers and cell phones. Users will gain knowledge on how to identify evidence and how to properly address it for specific cases, including challenges to the methods of analysis and to the qualifications of persons who would testify about this evidence. This book is intended to provide digital forensics professionals, legal professionals and others with an interest in this field the information needed to understand what each type of evidence means, where it comes from, how it is analyzed and presented, and how it is used in various types of civil and criminal litigation. Relevant case law are included, or referred to, as appropriate throughout this book to give the reader an understanding of the legal history of this type of evidence and how it is being addressed by various state and federal courts. Presents the most current and leading edge information on cell phone location evidence, including how cell phone location works, and how evidence is used and presented in court Covers tactics on how to locate cell phones and cell phone records Provides the first book to take an in-depth look at cell phone location evidence for digital forensics, legal and law enforcement professionals Includes a companion website with full-color illustrations of cell phone evidence and how cell phones work

An updated and revised edition of the most highly recommended guide to learning to be a private investigator-or just using the tools PIs do to understand what goes on in your local courthouse, find information in public records, and perform searches to save you time and money. Among the changes for this edition- Completely new chapters on skip tracing Up-to-date information on how to make money by understanding your local courthouse and finding not-so-hidden gems in public records Under-the-radar databases you need to know about Completely new-and hot-chapters on due diligence searches, including pre-employment and tenant screening investigations and adoption searches

ARE YOU PREPARED FOR THE LAW ENFORCEMENT IT REVOLUTION? Law enforcement agencies that are laggards in Information Technology (IT) will soon, if not already, be considered mismanaged. Whether you are in an operational position, or you are a police officer who aspires to a higher rank, you must be aware of how IT can help you perform your job and hel