Plain errors or defects affecting substantial rights may be noticed although they were not brought to the attention of a court. Source: SL 1978, ch 178 , § 548. 23A-44-16
(Rule 52(b)) Plain error noticed though not brought to court's attention
SDCL § 23A-44-15, under MISCELLANEOUS ADMINISTRATIVE PROVISIONS.
SDCL § 23A-44-15