A person cannot be tried, sentenced, or punished for any public offense while he is mentally incompetent to proceed. Source: CCrimP 1877, § 514; CL 1887, § 7564; RCCrimP 1903, § 543; RC 1919, § 4793; SDC 1939 & Supp 1960, § 34.2001; SDCL, § 23-38-1; SL 1978, ch 175 , § 1.
Incompetent person cannot be tried, sentenced or punished
SDCL § 23A-10A-2 — under INQUIRY INTO DEFENDANT'S MENTAL COMPETENCY TO PROCEED.
SDCL § 23A-10A-2