The Royal Victoria hospital is reportedly being sued for $60,000 in damages for a false positive drug test.
Welfare authorities took Isabel Villeneuve's newborn daughter a year ago.
She believes she was tested because she admitted to using marijuana early in the pregnancy.
Villeneuve said the positive drug test was the result of acid reflux medication her doctor prescribed, known to lead to false positives.
A second similar test also triggered a false positive.
The child was returned a week later.
The whole experience has left Villeneuve and her partner emotionally scarred.
"Giving birth was honestly one of the most beautiful things I've ever done, and I love going back and thinking about it," she says. "But then I have to think about what followed."
The hospital has yet to comment.
A report from the MUHC's complaint commissioner suggests the hospital should have given a separate test known to give reliable results.
Villeneuve says someone has to be held accountable.
Photo credit: en.wikipedia.org