Green criminology is an area of scholarship recognised as providing significant opportunity for interdisciplinary engagement. Hall (2014) has called for increased collaboration between green criminologists and legal scholars to meet green criminology’s aims, though sees this form of interdisciplinarity as more challenging than for other areas of criminology. This paper seeks to extends Hall’s thesis through a critical exploration in two areas Hall identifies as offering ground for collaboration. The first opportunity lies in Hall’s recommendation that analyses of environmental harm be positioned within wider regulatory debates and frameworks. The second opportunity for collaboration is in investigating the ways ‘human and non-human victims’ do and might interact with ‘the mechanisms of justice’ to exercise ‘environmental rights’ (Hall 2014: 105). We explore Hall’s proposal according to the case of wildlife trafficking in Vietnam and propose ‘multispecies justice’ as a suitable frame in which to explore the possibilities for law-green criminology collaborations.