was born in 1946, of a Scottish father and a Brazilian mother.
Part of my education took place in Brazil and part in Britain.
I received a Bachelor of Arts degree at the University of Sussex
(1968) and a Masters degree in Sociology of Latin America at the
University of Essex (1971). After moving back to Brazil in 1972,
I finally received my doctorate in Social Anthropology at the
University of Sao Paulo (1986). I then began doing research on
different aspects of drug use and was researcher at the Escola
Paulista de Medicina in Sao Paulo. In 1994 I moved to Salvador,
in the State of Bahia, where I continue to study cultural aspects
of drug use and to teach anthropology at the Federal University
I have been member of different official Brazilian government
commissions set up to study drug use in Brazil and am, at the
moment, taking part in board of experts set up by the President
encharged with the elaboration of the official Brazilian drug
policy. I have published books and scientific articles on urban
social movements, sexuality, drug use and AIDS prevention, some
of which have been translated into English, French and Spanish.