An assault lawyer is needed when there is a case of assault. The assault can happen in a variety of ways. For example an assault lawyer may specialize in domestic violence cases. The assault lawyer in this case will deal with spouses, children, or other family members who have suffered from violence.
Other options for an assault lawyer are to deal with general assault cases. For instance a person who assaults another in a bar fight would be a reason. For this type of case the defendant might need an assault lawyer, as well as the person who was assaulted. These lawyers have to spend at least four years at a university, train in a law office, and pass the bar in order to work as a lawyer.