Investigating Missing Children Cases : A Guide for First Responders and Investigators

Although there are currently a wide variety of software packages suitable for the modern statistician, R has the triple advantage of being comprehensive, widespread, and free. Published in 2008, the second edition of Statistiques avec R enjoyed great success as an R guidebook in the French-speaking world. Translated and updated, R for Statistics includes a number of expanded and additional worked examples.Organized into two sections, the book focuses first on the R software, then on the implementation of traditional statistical methods with R. Focusing on the R software, the first section covers:Basic elements of the R software and data processingClear, concise visualization of results, using simple and complex graphs Programming basics: pre-defined and user-created functions The second section of the book presents R methods for a wide range of traditional statistical data processing techniques, including: Regression methodsAnalyses of variance and covariance Classification methodsExploratory multivariate analysis Clustering methodsHypothesis tests After a short presentation of the method, the book explicitly details the R command lines and gives commented results. Accessible to novices and experts alike, R for Statistics is a clear and enjoyable resource for any scientist. Datasets and all the results described in this book are available on the book‘s webpage at http://www.agrocampus-ouest.fr/math/RforStat

Time is an abducted childs worst enemy. Seventy-four percent of abducted children who are murdered are killed within three hours of their abduction. It takes, on the average, two hours for a parent to report a child missing. This gives responders only one hour to get an investigation up and running in an attempt to locate and recover the child alive. Investigating Missing Children Cases: A Guide for First Responders and Investigators provides a solid training guide on missing children investigative techniques, enabling law enforcement professionals to respond confidently with a plan of action that offers the best possible chance for a positive outcome. The book provides law enforcement agencies with the most current information available to guide them through a missing or runaway child dispatch. It is designed to help investigators respond quickly, expeditiously evaluate the situation, conduct an Endangerment Risk Assessment (ERA) of the child, and commence a thorough, organized investigation‘starting from the moment the police are contacted. By following the guidelines in this book, those tasked with these cases can make the best possible decisions in the shortest amount of time. The protocols and methodologies presented are based on personal police experience and statistical evidence from research and studies gathered from thousands of runaway and missing children cases. Details on those studies and their findings are provided in the appendix. Time is of the essence in missing children cases. Make every second count.