Law & Order Season 7 Episode 22
Past Imperfect
The cops have a definite clue when a bloodstain that's not the same as the victim reveals that the killer was a blood relative, and the prosecutors stumble when their chief suspect claims their chief witness is her lawyer, and his knowledge of the crime represents privileged communications.
Guest Stars

Katherine Borowitz
Defense Attorney Marjorie Larson
Bob Kaliban
Judge Bernard Kelman
Kitty Mei-Mei Chen
Elizabeth Yee
Rene Augesen
Sonja Harlann

Bray Poor
Grant Silverman