Is it in violation of the fifth Amendment and Brady v. Maryland to convict a person with the use of false and manipulated evidence?

QUESTION(S) PRESENTED 1. Is it in violation: of the fifth Amendment and Brady v. Maryland to convict a persoh with the use of false and manipulated evidence? ; ” 2. Is it in violation of the fifth Amendment and Brady v. Maryland to 7 : falsify and manipulate Discovery Evidence before it is given to the defense? 3. Is it in violation ofthe Sixth Amendment or Ineffective assistance of Counsel if defense counsel fails to investigate evidence that he new os mc : would have impeached the governments expert and star witness . leaving. : _ No credable evidence to present in trial. _ :