Can this court extend expert witness needed beyond psychiatrist specialist, because courts refused offer handwriting expert to assist petitioner defense, impeach and show prosecution witness has committed perjury under oath?

QUESTION(S) PRESENTED CAN THIS COURT EXTEND EXPERT WITNESS NEEDED BEYOND PSYCHIATRIST SPECIALIST, BECAUSE COURTS REFUSED OFFER HANDWRITING EXPERT TO ASSIST PETITIONER DEFENSE, IMPEACH AND SHOW PROSECUTION WITNESS HAS COMMITTED PERJURY UNDER OATH? It. CAN THIS QURT CLEARLY ESTABLISH FEDERAL LAW HOLDING THAT CROSS-EXAMINATION IS ‘ VIOLATED ONCE PROSECUTION WITNESS TESTIFIES AT ‘TRIAL ON DIRECT-EXAMINATION, OFFERING COMPLETELY CONTRADICTORY TESTIMONY FROM THAT OF HIS PRELIMINARY EXAMINATION, IS IT A VIOLATION OF CONFRONTATION CLAJSE WHEN PETITIONER IS UNABLE TO CROSS-EXAMINE PROSECUTION WITNESS 44 MINUTE TRIAL TESTIMONY, WHICH NOW DOES NOT IDENTIFY PETITIONER? Til. CAN THIS COURT ESTABLISH FEDERAL LAW HOLDING THAT CROSS-EXAMINATION AT PRELIMINARY— EXAMINATION HEARING IS INSUFFICIENT TO SATISFY CONFRONTATION CLAJSE, IS NOT CROSS-— EXAMINATION “CONFRONTATION CLAUSE" BASICALLY A TRIAL RIGHT?