De Carlo himself initially declared his aversion to planning a building destined to try and judge men. But he was convinced otherwise when it was pointed out that a well-designed structure could contribute to improving the working conditions of lawyers and judges, and as much as possible, the correct procedure of judiciary activities. He therefore paid special attention in his project to the quality of the internal spaces, to their accessibility and to the relationship of openness of the entire building with respect to citizens and the city.
The Palace of Justice is located on the edge of the historical centre, linked to the areas of recent expansion, and it is conceived for being as permeable as possible.
Access through the main entrance on Piazzale Carducci brings you to a large internal court with a garden onto which all the public routes of the system lead. The large bright halls have human scale dimensions and glass partitions through which to assist at the debates.
The heart of the system is a light metallic structure, raised to ten metres above ground and surmounted by a large skylight from which natural light filters down to the garden below. Covered in fabric, the metal cage contains the reading room of the library and represents the expressive fulcrum of the composition. Careful consideration of the various groups of users and the reasons for their presence within the building gave birth therefore to an unusual model of a building, with balanced architectural forms, natural light in its interior and the opening of the work spaces to the public eye. Outside the building is faced with large handmade slabs of terracotta, in a colour that recalls, in its variations, the bricks of the Palazzo Ducale. Its shape, its position in the city and the large internal public square that can be freely crossed, compete in defining the urban importance of the whole structure.