Opening a banking account has become a widespread phenomenon. Number of people who open accounts has increased over the past few years due to the advantages of this operation. However, on the other hand, there are lots of risks which are indispensably connected with this operation. This study concerns with ability of the bank to supervise financial status of the customers. It firstly deals with legal base of banking supervision on the personal status of the account holders, and legal justifications of this supervision. The study deals as well with the extension of duty of the bank to control personal status of the account holders. Vast majority of Arabic legislations, if not all, did not regulate the legal scope of banking supervision or personal status of their customers.

On the contrary, French law and banking custom require some details to be written in the application of the account holder, among these details; identity, domicile, profession and reputation