Appointed Citizenship Judge for Montreal in October 2009, she is a lawyer. Prior to her appointment, she worked at the Ministry of Justice of Quebec where she filled different functions in civil and criminal law.

Active as a volunteer in her community, Judge Giroux is especially interested in crime prevention and public safety. She established Info-Crime on the south shore of Montreal where she acted as President; she was also a member of the Board of Directors and of the Executive Committee for Info-Crime Quebec. In addition, Judge Giroux gives her time to the Multiple Sclerosis Society of Canada and Canadian Cancer Society by participating in campaigns to raise funds.

Judge Giroux graduated in management from the École des Hautes Etudes Commerciales (HEC Montreal) and in law from the University of Quebec in Montreal (UQAM). She is a member of the Bar of the province of Quebec.