Study finds some Welsh farmers killing badgers
17 January 2013 Last updated at 20:40 GMT
A survey of Welsh farmers suggests an estimated 10% could have killed a badger illegally in the last year over concerns about bovine tuberculosis.
The research was carried out by researchers at three universities, including Bangor.
The Welsh government says it is a matter for the police.
Environment correspondent Iolo ap Dafydd reports.