Femicide use this idea of provocation in their own murder trials, and judges are less likely to accept claims of self-defense, showing biased judging standards. Factors that decrease the risk of intimate partner femicide include a separate domicile for women and other societal factors such as more police as well as mandated arrest for violation of restraining orders related to intimate partner violence. Karen D. Stout found that there is a correlation between the number of women's shelters in a state, number of rape crisis centers and a lowered rate of femicide. One explanation of this correlation is that the implementation
Femicide is the appearance of physical abuse, which was found in 79% of all femicide cases in North Carolina. Gun availability in the United States has also had a substantial effect on femicide, correlating to 67.9% of deaths in a study by Karen D. Stout. Living in neighborhoods with increased poverty, ethnic heterogeneity and decreased collective efficacy (social cohesion among neighbors) are all found to be linked to increased femicide rates in that area. Across the nation femicide rates vary, with the highest rate in 1985 being found in Alabama and the lowest in Iowa. Geographically, the highest prevalence of femicide