In determining which officers or employees shall be bonded, the county commissioners may make such determination by classes of officers and employees with due regard to the duties and responsibilities of officers and employees falling within such class a "blanket" surety contract purchased hereunder may cover both elected and appointed officers and employees and a "blanket" bond or bonds shall be purchased whenever the premium for such "blanket" bond is less than the aggregate of premiums chargeable for individual bonds.
K.S.A. 19-4203