Dr. Elizabeth Garrison is the accomplice of Dr. Graham Mandell and Davis Langley in the illegal inseminations of comatose women for Parkinson's studies.
Langley paid Mandall and Garrison to inseminate and impregnate comatose women with Langley's sperm to study the babies' stem cells and hopefully harvest them for curing Langley's Parkinson's and make scientific breakthroughs. She aborted the pregnancy of Audrey Logan but was stopped in the process of doing so to Stephanie Rawley.
Mandell and Garrison were taken to trial, with Langley as a witness for the defense. The plea of the desperate need for their research and Langley detailing his prognosis left the jury sympathetic enough to acquit on all charges, leaving the study team with minor penalties and warnings. (SVU: "Waste")