Mealey's (November 26, 2019, 12:56 PM EST) -- RICHMOND, Va. — While a trial court’s ruling allowing an expert witness to testify for the government to prove a child pornography charge was “quite brief,” any error was harmless as there was ample other evidence to convict the defendant, the Fourth Circuit U.S. Court of Appeals ruled Nov. 25 (United States v. Shahid Hassan Muslim, No. 16-4304, 4th Cir., 2019 U.S. App. LEXIS 35178)....