Geektastic: There's no obvious way to tell premium and non premium apart as no shop seems to bother actually putting labelling on minced beef to enable you to make an informed decision.
UK supermarkets put average fat percentage stickers on the packs, so premium might be 5%, normal might be 10% etc.
Of course there is. Talk to your butcher. If you can't talk to your butcher, you are shopping in the wrong place.
I love meat, and my butcher is fantastic - I would say a craftsman. He only sells meat he believes in. Very close to a calling, actually. It's delicious.