Section 12-16-151
Challenges of jurors for cause - Manner of proof.
Of the causes of challenge specified in Section 12-16-150, the first four may be proved by the oath of the person summoned or by other evidence, the fifth and sixth by other testimony only, the seventh by the oath of the person alone and the others as the court may direct.
(Code 1852, §§629, 631; Code 1867, §§4181, 4183; Code 1876, §§4882, 4884; Code 1886, §4332; Code 1896, §5017; Code 1907, §7277; Code 1923, §8611; Code 1940, T. 30, §56.)