If your brother and sister were arrested for domestic violence, more than likely the case has been turned over from the police to the local district attorney to determine if any criminal charges will be filed and against whom. Due to constitutional restraints, if your brother or sister are charged, they will have to go before a judge or magistrate soon to be arraigned on the criminal charges. Typically in a Domestic Violence case, cases are dismissed if the charging party no longer wants to prosecute, but be mindful that this decision will ultimately reside with the prosecuting official to decide.