Black's Law Dictionary (2nd edition)dictionaries

Serpent-Venom Reaction

A test for Insanity by means of the breaking up of the red corpuscles of the blood of the sus-pected person on the lnjectlon of the venom ot cobras or other serpents; recently employed in judicial proceedlngs in some European countries and in Japan

Source: Black’s Law Dictionary 2nd Ed (1910)