Focusing on law enforcement personnel at the city, county, and state levels (including police, sheriffs, and highway patrol agencies), this document is one in a series of six volumes reporting the results of the National Manpower Survey (NMS) of the Criminal Justice System. Chapter 1 of six chapters summarizes the major results of a national survey of law enforcement personnel, including current manpower assessment, manpower outlook, recruitment and retention, education, and training. Chapter 2 presents a profile of three levels of law enforcement agencies (local, state, and federal) and discusses the relationship between police manpower and the crime rate. Chapter 3 provides employment projections of state and local personnel needs, by occupation, for a ten-year period (to 1985). A summary of recruitment needs and turnover problems in law enforcement agencies is presented in chapter 4. Education and training needs for law enforcement occupations are discussed in chapters 5 and 6, respectively; and based on the comparisons of current educational and training programs with desired standards, conclusions and recommendations for program improvement are made. (BM)