Public procurement involves very large economic values in Sweden and Europe. An issue that has received increasing attention is sustainable public procurement - especially with a focus on environmental, social challenges and other values than the strictly economic and technical ones. This research project aims to clarify the legal possibilities and limits for taking such factors into account in the context of public procurement. The inclusion of such soft values in procurement makes the process and evaluation more complex than, for example, evaluation according to the lowest price principle. There is a strong need to clarify the legal situation in this area for both contracting entities and businesses.