Any trust company qualified to act as a fiduciary in this state may establish common trust funds or collective investment funds for the purpose of furnishing investments to itself as fiduciary, or to itself and others, as co-fiduciaries. Any trust company qualified to act as fiduciary in this state may, as such fiduciary or co-fiduciary, invest funds that it lawfully holds for investment in the common trust funds or collective investment funds, if the investment is not prohibited by the instrument, judgment, decree, or order creating the fiduciary relationship. Any common trust fund or collective investment funds shall be established and maintained according to the provisions of chapter 55-6.
SDCL 51A-6A-64