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The Criminal Investigator

This is a guide for police patrol officers, police investigators, and private security and investigators. This book makes no distinction between the various levels of investigation, whether it is done by a uniformed police, detectives, or others. Where appropriate, this book describes nationally recognized methods of investigation and evidence examination adopted from the Department of Justice (DOJ); Federal Bureau of Investigation (FBI); Bureau of Alcohol, Tobacco, and Firearms (BATF); National Association of Fire Investigators (NAFI); National Institute of Justice; and US Army Criminal Investigation Laboratory ( crime lab).