Brazilian. Master in Sociology. She has held different positions in public service. Among these she has been the General Director of the Prison System (1991/1994) and the Police Ombudsman (1999/2000) both in the State of Rio de Janeiro and a member of the National Council for Criminal and Penitentiary Policy in the federal government (1995/1998).
From the year 2000, Ms. Lemgruber has been the Coordinator of the Center for Studies on Public Security and Citizenship at University Candido Mendes, she was a board member of Penal Reform International (1995/2005) and is presently a board member of the International Drug Policy Consortium and Altus Global Alliance.