The Institute of Theory and Techniques of the Legal Information (ITTIG) of the Italian National Research Council (CNR) has produced various electronic information systems. Among these, the archive BIG (Bibliography on right to life and interruption of pregnancy, bioethics and genetic engineering). The article presents the archive BIG in its previous version in print and Internet versions, and it describes its main characteristics (original, analytical, objective, scientific). At last, it exposes the rules for data selection and the debate about the right to life in Italy. The archive BIG enables the expert as well as the layman, to exercise an effective control on the enormous material published on this matter.