It has been rampant for years, upon years..... its all a rort !!!
Live kills have been used to have the dog concentrate on the lair, and if they didn't, it would be like a pack of dogs chasing a stick.....
Maybe the RSPCA ,along with officials that have had their head in the wrong place for over half a century, will now look into the dog "medications" used to give the dog either a couple of lengths quicker or slower over a certain distance...... here is their little clue.... crystalized cocaine !!!