independent source rule
independent-source rule. Criminal procedure. The rule providing — as an exception to the fruit-of-the-poisonous-tree doctrine — that evidence obtained by illegal means may nonetheless be admissible if that evidence is also obtained by legal means unrelated to the original illegal conduct. See FRUIT-OF-THE-POISONOUS-TREE DOCTRINE. Cf. INEVITABLE-DISCOVERY RULE. [Cases: Criminal Law 394.1(3). C.J.S. Criminal Law §§ 771, 773–775.]