All banks, trust companies, savings and loan associations, insurance companies, executors, administrators, guardians, trustees, and other fiduciaries may legally invest any moneys within their control in any bonds issued under this part 6. Public entities, as defined in section 24-75-601 (1), C.R.S., may invest public funds in the bonds only if the bonds satisfy the investment requirements established in part 6 of article 75 of title 24, C.R.S.