The document provides an overview of the Guernsey Financial Services Commission's (GFSC) supervisory approach and discusses the implications of Brexit for Guernsey. The GFSC uses a risk-based approach to supervision called PRISM that categorizes firms based on their impact and the probability of risks. It engages with firms at different levels depending on their risk profile. Brexit could impact Guernsey's access to EU markets but it also provides opportunities if Guernsey can negotiate replacement agreements. The document outlines Guernsey's current relationship to the EU and strategies for maintaining access to UK and EU markets after Brexit.