falsus in uno falsus in omnibus is rule of evidence
Falsus in uno, falsus in omnibus Today, many jurisdictions have abandoned the principle as a formal rule of evidence and instead apply the rule as a "permissible inference that the jury may or may not draw."[11] However, some courts continue to apply the doctrine to discredit witnesses that have previously offered false testimony.[12] In 2013, for example, the United States Court of Appeals for the Ninth Circuit held that in immigration cases, a court may "use an adverse credibility finding on one claim to support an adverse finding on another claim."[13] Likewise, at the O.J. Simpson murder trial, Judge Lance Ito applied the doctrine to instruct the jury that "[a] witness who is willfully false in one material part of his or her testimony is to be distrusted in others."[14]