Janet Weston is the adoptive mother of murdered 11-year-old girl Paula Weston. Janet testified against Dr. Madelyn Stahl for killing Paula during a child therapy session using an unconventional method known as "rebirthing". Paula apparently suffocated to death after being ordered to break free from bedsheets she was wrapped in.
Janet was ultimately revealed to have killed Paula by sabotaging the session, as Paula was allergic to latex and Janet rubbed latex residue on the bedsheets. Janet argued that her life was taken away by Paula's behavioral problems. She was found guilty of first-degree murder and imprisoned, while Stahl pleaded down to assault. (L&O: "Born Again")