Section 15-15-1
Entry of not guilty plea for defendant upon refusal to plead.
If a defendant, when arraigned, refuses or neglects to plead or stands mute, the court must cause the plea of not guilty to be entered for him.
(Code 1852, §617; Code 1867, §4169; Code 1876, §4870; Code 1886, §4438; Code 1896, §5262; Code 1907, §7565; Code 1923, §5195; Code 1940, T. 15, §276.)