Professor the Lord Trees graduated in 1969 from the Royal (Dick) School of Veterinary Studies, Edinburgh. Following a research expedition to Kenya and a year in mixed general practice, Lord Trees completed a PhD on bovine babesiosis, and then worked at Elanco (Rome) as veterinary advisor for their Middle-East/North African operations.
In 1980 he was appointed Lecturer in Veterinary Parasitology at the University of Liverpool, based in the Liverpool School of Tropical Medicine. Appointed Professor of Veterinary Parasitology in 1994, he went on to become the Dean of Liverpool’s Faculty of Veterinary Science from 2001 until 2008.
Funded by over £15m of external grants, Lord Trees’ research has produced over 160 scientific papers and numerous presentations at regional, national and international conferences. Lord Trees also maintains an active interest in veterinary education and was President of the Association of Veterinary Teachers and Research Workers from 1996-97.
He was a Council member of the Royal Society of Tropical Medicine and Hygiene, a founding Diplomate of the European Veterinary Parasitology College, is an Executive Board member of the World Association for Veterinary Parasitology. A council member of the Royal College of Veterinary Surgeons since 2000, he was President of the RCVS in 2009-10. Retiring from the University of Liverpool in 2011, he is currently Veterinary Editor in Chief of the Veterinary Record and In Practice and Chairman of the Board of the Moredun Research Institute. In March 2016 Trees was elected an Honorary Fellow of the Royal Society of Edinburgh, the RSE’s highest class of Fellowship.
In 2012 Lord Trees was appointed a Life Peer (through House of Lords Appointment Commission route) to sit on the Crossbenches and whilst primarily involved in policy related to the wide remit of the veterinary profession, he also takes an interest in a range of other issues. He was a member of the House of Lords EU Select Committee from 2015-2017, and of its Sub-committee on Energy and Environment (which includes agriculture) from 2014-2017. In this committee role he contributed to some 19 Select Committee reports including 16 on Brexit.