Emotions in domestic incidences and investigations are volatile, and they can change in a moment. Ask an officer how often a spouse has called the police for help and then attacked the responding officer for arresting the abuser. It's common. Ask an attorney which type of law is most likely to result in the attorney being shot. She'll tell you that it's family law. People in these situations are highly emotional, so if you decide to work these cases be prepared for anything.