Kevin Gilmartin is probably one of the most well known researchers in the area of police officer stress and how to combat it. He has authored a number of books that really can be a tool for those of you interested in this area. Emotional Survival for Police Officers is probably one of the better books but he also has authoried Tired Cops, When Bad Things Happen to GoodChiefs and other support books for officers as well as their families. Check out his link for more information.