Every six months, the council elects two captains regent to be the heads of state. The captains are chosen from opposing parties so that there is a balance of power. They serve a six-month term. The investiture of the captains regent takes place on 1 April and 1 October in every year. Once this term is over, citizens have three days in which to file complaints about the captains' activities. If they warrant it, judicial proceedings against the ex-head(s) of state can be initiated.