A longtime member of the CSI: Crime Scene Investigation family has received a promotion for the show’s upcoming season, I have learned exclusively. Christopher Barbour, who has been with the series since Season Six, will now be credited as a co-producer. Barbour started out on the show in the clearance department, working his way up to writer and executive story editor. His first writing credit for the series, “Lying Down with Dogs,” earned him a Genesis Award in 2008. He co-wrote the upcoming Season Thirteen premiere “Karma to Burn” with executive producer Don McGill, marking his eleventh credit for the series.