Hugo Black,
Hazel-Atlas Glass Company v. Hartford-Empire Company…
“ The statement that only extrinsic fraud may be the basis of a bill of review is merely a corollary of the rule that review will not be granted to permit relitigation of matters which were in issue in the cause and are, therefore, concluded by the judgment or decree. The classical example of intrinsic as contrasted with extrinsic fraud is the commission of perjury by a witness. While perjury is a fraud upon the court, the credibility of witnesses is in issue, for it is one of the matters on which the trier of fact must pass in order to reach a final judgment. ”
