The SVU case that Sergeant Benson mentions is not one that was ever depicted on the show. The clip is from an episode approximately fitting the "ten years ago" timeline (the episode is Soulless (2003) from SVU's fourth season), but the dialog from Tamara Tunie as Dr. Melinda Warner is newly recorded. If you look closely, you can see that her mouth movements in the clip don't match what she's saying.