Jury selection in a high-profile, high-stakes case like the Philadelphia Archdiocese abuse case is "very, very, very hard," said Edward Ohlbaum, a professor at Temple's Beasley School of Law. "The law doesn't require that somebody sit on the jury without opinions," Ohlbaum said. "But the law does say that if somebody has an opinion that favors one side or the other, that the opinion cannot be fixed."