Islamic banks are characterized by their direct intervention in financial transactions, and by their respect for Shari'a law. Indeed, as we emphasized in the previous chaptersall credit is based on a real asset, and speculation is prohibited. Also, the practice of securitization, at the root of the crisis, is forbidden by Islamic regulations.This research paper does not aim to provide professionals with exhaustive documentation, nor does it claim to offer a formal, innovative methodology, but it could serve as a useful, practical guide for professionals who, unfamiliar with the sector, find themselves working with an Islamic bank.