The State is hereby divided into nine judicial districts of which the County of Storey shall constitute the First; The County of Ormsby the Second; the County of Lyon the Third; The County of Washoe the Fourth; The Counties of Nye and Churchill the Fifth; The County of Humboldt the Sixth; The County of Lander the Seventh; The County of Douglas the Eighth; and the County of Esmeralda the Ninth. The County of Roop shall be attached to the County of Washoe for judicial purposes until otherwise provided by law. The Legislature may, however, provide by law for an alteration in the boundaries or divisions of the districts herein prescribed, and also for increasing or diminishing the number of the judicial districts and judges therein. But no such change shall take effect, except in case of a vacancy, or the expiration of the term of an incumbent of the office. At the first general election under this Constitution there shall be elected in each of the respective districts (except as in this Section hereafter otherwise provided) one district judge, who shall hold office from and including the first Monday of December A.D., eighteen hundred and sixty four and until the first Monday of January in the year eighteen hundred and sixty seven. After the said first election, there shall be elected at the general election which immediately precedes the expiration of the term of his predecessor, one district judge in each of the respective judicial districts (except in the First District as in this Section hereinafter provided.) The district judges shall be elected by the qualified electors of their respective districts, and shall hold office for the term of 6 years (excepting those elected at said first election) from and including the first Monday of January, next succeeding their election and qualification; provided, that the First Judicial District shall be entitled to, and shall have three district judges, who shall possess co-extensive and concurrent jurisdiction, and who shall be elected at the same times, in the same manner, and shall hold office for the like terms as herein prescribed, in relation to the judges in other judicial districts, any one of said judges may preside on the empanneling [empaneling] of grand juries and the presentment and trial on indictments, under such rules and regulations as may be prescribed by law.