of States Parties. [ 68 ] They serve nine-year terms and are not generally eligible for re-election. [ 68 ] All judges must be nationals of states parties to the Rome Statute, and no two judges may be nationals of the same state. [ 69 ] They must be “persons of high moral character, impartiality and integrity who possess the qualifications required in their respective States for appointment to the highest judicial offices”. [ 69 ] The Prosecutor or any person being investigated or prosecuted may request the disqualification of a judge from "any case in which his or her impartiality might reasonably be doubted on any ground". [ 70 ] Any request for the disqualification of a judge from a particular case is decided by an absolute majority of the other judges. [ 70 ] A judge may be removed from office if he or she "is found to have committed serious misconduct or a serious breach of his or her duties" or is unable to exercise his or her functions. [ 62 ] The removal of a judge requires both a two-thirds majority of the other judges and a two-thirds majority of the states parties. [ 62 ] The Office of the Prosecutor is responsible for conducting investigations and prosecutions. [ 41 ] It is headed by the Chief Prosecutor, who is assisted by one or more Deputy Prosecutors. [ 51 ] The Rome Statute provides that the Office of the Prosecutor shall act independently; [ 71 ]