Leigh leads policy efforts related to wildlife conservation. Since joining the WWF family in 2001, Leigh’s work has focused heavily on wildlife crime, marine species conservation, and spearheading WWF’s engagement in CITES (Convention on International Trade in Endangered Species) and the International Whaling Commission. She has played a key role in our efforts to combat illegal tiger trade and to ensure the survival of wild tigers through improved international and U.S. policies, and she was a core member of the WWF network’s Stop Wildlife Crime campaign, which helped to secure unprecedented global and U.S. leadership and commitment to end poaching and wildlife crime. More recently, Leigh has helped to lead our campaign to save Mexico’s vaquita porpoise from extinction.