On December 16, 2004, the city council of the state capital of Wiesbaden passed a resolution with the votes of the CDU, SPD, FDP and Bündnis 90/Die Grünen, according to which the state capital of Wiesbaden is committed to the Wiesbaden line of tolerance and integration. The resolution went on to say: "Successful integration, despite the diversity of cultures, religions, traditions and customs, requires a common foundation of values, norms and rules that are binding for everyone. This foundation is formed by our constitution, in particular the free democratic basic order and the rule of law, the guiding principle of human dignity and fundamental rights, the separation of church, religion and state, the values of freedom, solidarity and justice, as well as tolerance, equal rights, personal responsibility and charity. (This guiding principle is also at the heart of the integration concept of the state capital Wiesbaden from February 2004, which describes the basis for integration work). The city council is requested to conclude agreements with all religious communities and corresponding associations and institutions based in Wiesbaden, which include a commitment to the above-mentioned goals, insofar as this has not already been done through state treaties."

For this task, which is unique in Germany to date, the Department of Integration made use of external academic expertise in the form of Professor Dr. Michael Germann, a constitutional and canon law expert from the University of Halle-Wittenberg, who provided significant and useful support in the preparation of the draft text for the agreement and in the public debate on it. This draft text was discussed in several rounds of talks in the summer of 2005 with representatives of the two major Christian churches and the Jewish community as well as the chairman of the Foreigners' Advisory Council, the head of the city council and the representatives of the parliamentary groups in the city council who supported the basic resolution, and was agreed as the basis for the negotiations to be conducted.

With this agreement text in mind, talks and negotiations were then initiated with Muslim communities in Wiesbaden with a view to the special needs of integration. This led to a large number of the Muslim associations and communities organized in Wiesbaden joining together to form the Working Group of Islamic Communities in Wiesbaden (AIGW). In summer 2007, the very complex negotiations were brought to a successful conclusion.