Specific tools used in the practice of violence, which leads to organ dysfunction or causing harm, with the purpose of discipline or retribution (Violence Policy Center, 2004). A gun is the weapon most commonly used in domestic homicides; other tools are such as a stick, a whip, a rope, a tube or an electric wire, in addition to the use of fire or some sharp or edged weapons. Other tools might also be used, such as hitting with shoes or household utensils, and that’s when the violence act is not previously planned.