I think id still rather be cautious about this issue as i dont think its worth any potential risk.I have heard of horses that have died as a result of ragwort poisoning,this must have been concluded by a vet.Im more likely to go along/believe in facts which ive seen,or heard of by reputable persons than take much notice in some piece of government legistation.This being a government that has always been a load of thieving idiots in my opinion.And as far as scientists go they probably havent been within spitting distance of a horse anyway.And as we all know they make mistakes...