Does a trial court's ruling excluding evidence at trial violate a criminal defendant's right to due process, including the rights to confront and examine law enforcement witnesses

QUESTION PRESENTED FOR REVIEW 1. Does a trial court’s ruling excluding evidence at trial violate a criminal defendant’s right to due process, including the rights to confront and examine law enforcement witnesses, when the ruling precludes cross-examination designed to impeach the thoroughness and good faith of a law enforcement investigation on information obtained by law enforcement that some person other than the defendant committed the crime? i