Research Methods for Criminal Justice and Criminology3e is about how to do research and investigate various types of research questions that arise in criminology and criminal justice. A complete discussion of research ethicsincluding ethical issues relating to the Nuremberg Code, research sponsorship, rights of human subjects and deception - helps readers understand their ethical responsibilities as researchers.This book explores the entire criminal justices and criminology research process from beginning to end including: sampling procedures; data collection techniques; measurement, validity and reliability issues; the role of ethics in the research process; and writing and documenting research papers.Presents a practical guide for conducting research in criminal justice and criminology careers.