Poisonous lambs?!

[calibrax]

http://www.bbc.co.uk/news/uk-northern-ireland-3403...

"He said their meat would be poisonous to humans if eaten."

Seems a bit unlikely to me... is this just a load of bullst by the farmer to mess with the thieves, or is there any truth to it?

[Silent1]

Iirc it will be a wormer or other drug they've been treated with.