Rosalind Dalefield completed a BVSc and a PhD in veterinary pathology at Massey University in New Zealand, followed by a postdoctoral residency at the Comparative Toxicology Laboratories, Kansas State University. In 1999 she became a Diplomate by examination of both the American Board of Toxicology and the American Board of Veterinary Toxicology. She is a full international member of the Society of Toxicology. Dr Dalefield’s experience in toxicology includes human health risk assessment in a government regulatory toxicology role; a USEPA-funded role in environmental toxicology including that related to aquifers, brownfields and former military bases and bombing ranges; experience as a Study Director and a Study Monitor in nonclinical pharmaceutical development in GLP contract toxicology laboratories