He has been professor of law, philosophy and sociology at the Universidad de Madrid. An expert in endogens, he studies and publicises their importance as a source of knowledge and in the development of the religious mentality, medicine and the creation and mechanisms of social control. He is the author of, amongst other publications, Historia general de las drogas, De physis a polis, El espíritu de la comedia (awarded the Anagrama prize for essay), Rameras y esposas, Drogas y dignidad humana and La cuestión del cáñamo. Una propuesta constructiva sobre el hachís y la marihuana.
The information regarding participants is taken from a file which has not been updated since the completion date of each project.