Cert petition in a burden-shifting case

In several posts, I have discussed, and railed against, statutes that shift to the accused the burden of producing a prosecution witness, typically the author of a lab report. Yesterday, I filed a cert petition raising this issue, and seeking review of the decision of the Supreme Court of Virginia in Magruder v. Commonwealth, 275 Va. 283, 657 S.E.2d 113 (2008). You can read the petition, in Briscoe and Cypress v. Virginia, by clicking here.