 He is very concerned about the reputation of his lab, and takes great care to keep them clean, likely because of his experience with his tarnished younger brother, Ray.When his staff fall under suspicion in several episodes ("One of Our Own", ""), he immediately jumps in their defense, especially from IA investigator Rick Stetler, and tries his best to prove their innocence.Unlike his counterpart in Las Vegas, now former CSI Supervisor Gil Grissom (""), he is a sworn police officer, and thus carries a badge and gun.