N which case did the supreme court hold that an illegally-conducted lineup does not invalidate later identifications resulting from an "independent source"?

A post-indictment team in the nonappearance of counsel was a defilement of the Sixth Amendment. United States v. Wade (1967) was an instance certain by the Supreme Court of the United States that held that an illegal defendant has a Sixth Amendment right to counsel at a listing held after accusation.