Revised and updated, this manual prepares police officers to take any of the various exams given throughout the country to qualify for promotion to the rank and responsibilities of police sergeant. A diagnostic test and three full-length practice exams are presented with answers and explanations. Subject review sections cover data analysis, police science, and community policing programs. Added features include brief practice-and-review quizzes and police assessment exercises with explained answers that are based on tests given by major police departments across the United States.