Law is often linked to ethics and morality. Regulations of genetically modified organisms ensue from a discussion on how well the law is composed to accommodate ethical considerations. The precautionary principle and biotechnology have undeniable moral connotations. Besides, the principle has socio-economic implications. The application of the precautionary principle in plant breeding should be legally justified on the basis of the best available evidence. On the other hand, scientific information cannot provide all the necessary information on which a risk management (...) decision should be based. This article addresses the issue of gap between science, ethics, and socio-economic considerations related to the cultivation and authorisation of GM crops. (shrink)