The proportion of farmers estimated to have killed badgers should be considered by policymakers and in the wider debate.
Intensive badger culling is one approach being considered by policy makers, in an attempt to control the spread of tuberculosis in cattle. However, studies investigating the effects of badger culling on TB outbreaks in cattle have not factored in the prevalence of illegal badger killing, and its potential to spread disease.
More top news
How a little boy from Magor inspired his village to become "Autism Aware"
Nath talks to ITV News about being diagnosed with a form of autism at 16 and how he is aspiring to be a musician.
The head of Glamorgan CCC hopes Cardiff will be awarded one of the new city-based teams in a new 20/20 competition to rival the IPL.