Why are some officers promoted to sergeant and why are some officers not promoted? National survey results based on social research Officers find out how you can better your chances of being promoted to sergeant by learning how other officers got promoted. Those who promote sergeants learn why others promoted sergeants. Sergeants find out where you compare in relation to other sergeants. The book is over 200 pages of graphs and explanations of the random survey data collected. 150 surveys were mailed out based on random sampling of law enforcement agencies with $1.00 dollar for filling them...