This document presents an overview on multimodal identity verification in the context of the BANCA project. In the first part, we detail multimodal identity verification and the methods used to create a system and to compute its performance. In the second part, we briefly describe the databases we worked with (XM2VTS and BANCA). Afterwards, methods and algorithms are described. Finally, we give some results. The aim of this document is to describe all this work in order to be reused and to be carried on by anyone else.