Laurence Fishburne made a guest appearance in the series CSI : Crime Scene Investigation before the year 2009 .
`` CSI Level 2 Dr. Raymond `` '' Ray '' '' Langston ( Laurence Fishburne , 2009-2011 , guest star 2008-2009 ) comes into contact with the CSI team in the course of a murder investigation and joins the Las Vegas Crime Lab as a level 1 CSI . ''
CSI-COLON- Crime Scene Investigation