If you have ever spent any significant amount of time on the west coast, you know how important and contentious of an issue salmon fishery is. Salmon fishery is part of the culture of many First Nations and coastal communities. It is a considerable industry, both in terms of commercial fisheries and aquaculture. Its future is uncertain as stocks seem to fluctuate beyond the comprehension of the Department of Fisheries and Oceans (DFO). There is no shortage of causes (diseases, pollution, poor management, climate change, etc), but as the Cohen Commission of Inquiry (Cohen) concluded, none is dominant. Among them is the risk caused by diseases brought in the salmons’ ecosystem through aquaculture. This particular risk is plague by a familiar environmental policy issue: scientific uncertainty. However, as Cohen found, this uncertainty does not in fact diminishes the risks. Last week, the Federal Court rendered a decision specifically on this issue in Morton v Canada (Fisheries and Oceans), a decision that provide some much needed follow up on Cohen’s aquaculture conclusions. In part one of this two parts post I’ll look at the question of judicial review of a strongly circumscribed ministerial discretion, and the use of the precautionary principle in reasonableness review. In the second part I’ll look at the question of sub-delegation of regulatory requirements to industries.