Before an attorney may participate as counsel of record in the circuit court for any adult felony case, including postconviction proceedings before the trial court, the attorney must complete a course, approved by The Florida Bar for continuing legal education credits, of at least 100 minutes and covering the legal and ethical obligations of discovery in a criminal case, including the requirements of rule 3.220, and the principles established in Brady v. Maryland, 373 U.S. 83 (1963) and Giglio v. United States, 405 U.S. 150 (1972).