Earlier quoted context omitted.
>Police officers are almost entirely decent people . . . This statement requires justification. >Research suggests that family violence is two to four times higher in the law-enforcement community than in the general population. >As the National Center for Women and Policing noted in a heavily footnoted information sheet, "Two studies have found that at least 40 percent of police officer families experience domestic…
Family violence is also more common in first responders/EMTs and soldiers. Take a wild guess on what those have in common with police officers. People that are constantly exposed to highly stressful situations tend to develop psychological problems.
>Police officers are almost entirely decent people . . .
Between 20% and 40% abuse their families. Does an entirely decent person abuse his family?
I'm not aware of a higher family abuse rate among EMTs, and a quick Google search produced nothing, so I'd appreciate any sources. Your reasoning makes sense, but I can just as easily say that violent people are more inclined to be police officers and soldiers - for obvious reasons. I'd guess it's some of both (some high stress and the attraction of the occupation to violent people).