Were the Petitioner's rights under the Fifth and Sixth Amendments infringed?

Question Presented Were the Petitioner’s rights under the Fifth and Sixth Amendments to the United States Constitution infringed, where pursuant to F.R.E. 412, the Trial Court restricted Petitioner’s ability to cross examine and/or introduce evidence of either prior or subsequent acts by the victim witnesses and where said evidence would serve to negate the mens rea elements of the crimes charged? fi]