Police officers need to know how to work in a decision-making process whether and whom to arrest or if both parties need to be arrested. The first thing police officers should do in a domestic violence case, is to understand the significance of the offense. Sometimes police officers have to do a dual arrest, due to victims are the ones who uses a physical aggression supposedly as a self-defense. Is up to the police officers to make a discretionary decision on a domestic violence case. The video said that it depends on the State, where an arrest is preferred, or in some occasions while in a jurisdiction law, the arrest is mandatory when there’s evidence of physical injury. Police officer should not focus just on the primary aggressor but on
