This chapter assesses the adequacy of legislative scrutiny over the process of economic treaty-making in New Zealand. It begins by exploring New Zealand’s treaty-making behaviour in the early twenty-first century, highlighting an enthusiasm for signing World Trade Organisation plus minilateral and bilateral treaties in the Asia Pacific. It emphasises the contentious nature of the vision of economic growth that underpins these treaties, arguing that international economic law is inherently political in ways that human rights law, arguably, is not. It then goes on to explore the international relations literature on executive dominance and compares this with New Zealand procedures. The paper argues that Select Committee scrutiny in New Zealand does offer some potential for Legislative control but that a strong cross-party political consensus on the desirability of new trade treaties hampers effective scrutiny in practice.