Wanderlust - S1-E5
Continuity mistake: When Benson and Stabler are interviewing Virginia at the end of the episode, when she admits to committing the crime, she breaks down into tears and her face turns red. The next shot is from over her shoulder, and her expression is normal. In the very next shot, from the front, her face is flushed and tears again.
Answer: His clients are guilty and won't take a plea. He's using desperate defenses in hopes of swaying a juror or two. Also makes for better television. "Temporary insanity" isn't nearly as compelling as "the video games made me do it."
Brian Katcher