A few years ago at a meeting for Directors of Institutes of Research in Criminology at the Council of Europe, Professor Radzinowicz expressed the opinion that criminologists should not bother too much about problems of methodology and techniques of research. We needed so badly some basic raw facts and some serious and very useful work could be achieved in the field with crude means. He pointed to the work of Durkheim and Burt which, to my opinion, would not propose very happy examples for this point.