If you can keep your dog in sight at all time, be aware of what they are doing and be confident your dog will come back to you promptly when you call, then there is no need to put them on a lead. But if you can not be confident they will return when you call, then a lead is the safest option for everyone.
Bobi was a political pawn, used by the media to condemn the RSPCA. In this case, the two charities in question were both doing the right thing in relation to the remit of their policies. The media hysteria, public bias and negative publicity meant that the death of Bobi would have haunted the RSPCA in 2014.
There are strong rules and regulations on weapons, and gun licencing laws in place, yet anyone, anywhere can go out and buy a puppy from a pet shop or breed from their dog, which could potentially grow to be a lethal weapon. These dogs are on our streets and, despite looking cute, can be as dangerous as a firearm.
Thurston's case is a really good illustration of showing that all dog behaviour happens for a reason. The key is to not overreact and try to look at the situation objectively and just as we have, always make sure you ask your vet to do a thorough examination before implementing training or behavioural changes.
So far I haven't spotted Lupo the royal dog in any of the coverage of the birth of Prince George. I am working on the assumption that their beloved Cocker Spaniel is at home with Kate's parents, as he is from a litter of the Middleton's family dog Ella. It would be great to find out though as I would wholeheartedly welcome them being a shining example of how the birth of a baby and the ownership of a dog can be managed.