A conviction and 10-year prison sentence for aggravated assault with a deadly weapon in Cobb County last week illustrates a dramatic change in the prosecution of domestic violence crimes, according to lawyers on both sides and victim advocates.

Roosevelt Woods, 44, of Marietta, was charged with assaulting his wife. When police arrived at their home on Christmas Eve 2012, Woods’ wife said Woods had put a knife to her throat and threatened to kill her. But later, she changed her story, saying the incident never happened, according to the prosecutor and the defense attorney. The prosecution proceeded without her cooperation.