Abstract
This article critically considers calls for the precautionary principle to inform judicial decision making in a private law context in light of the Hoffman litigation, where it is alleged that the potential for genetic contamination from genetically modified (GM) crops causes an unreasonable interference with the rights of organic farmers to use and enjoy their lands, giving rise to an actionable nuisance. Applying the precautionary principle in this context would likely privilege non-GM land uses over GM uses, given the latter's uncertain environmental impacts. Through a comparison of the institutional characteristics and respective roles of public and private regulation, the authors argue that the private law context, which lacks democratic accountability and has a limited ability to address complex scientific issues, is poorly suited to apply the diffuse, policy-based risk allocation considerations raised by the precautionary principle.