Here's the description of the special issue from its editors:
The special issue of Food Policy will focus on zero tolerance as a characteristic of public policy, statues, and/or regulations of food. We also consider private rules including grades and standards. Of interest are the public and private rules that impose a "zero" standard for substances, e.g. residues, genetically modified organisms (GMOs), pathogens, and other constituents such as gluten and transfats. This standard also applies to rules governing production practices, for example, added hormones, and product defects, such as, insect parts.You can find more information about this issue in the full call for papers. More information about how to submit is available on the journal website.