I think Philbrew is correct. And I think those who disagree are getting confused. Yes, you can give away alcohol, but you still pay tax and duty. For example, gifts to clients at Christmas. You can give it away by the lorry load if you wish. As long as taxes and duties have been paid (though I'm not sure if you can claim back the VAT as entertainment etc). You can even do this with homebrew. As long as you have all the paperwork and have paid taxes and duty.
But if you're giving it away as a gift at Christmas, or as a supermarket selling Carling at a loss to drive up sales elsewhere, the people you're giving it to are unlikely to be drinking it on your premises (and in the case of shops not allowed to as they only have a off sales licence). If you take your clients or staff out at Chrismas and put your company credit card behind the bar, tax and dufy have been paid and the premises you are on and/or the person selling are licensed.
If you're supplying alcohol on the premises as part of your business, someone or a building will have to be licenced for the 'consumption' of alcohol which has nothing to do with tax or duty and only has do with being fit and able to conduct the business of supplying alcohol.
Ultimately, it's in the interest of anyone never to take for granted anything they read on a forum unless the advice is given in a professional capacity. Always seek the advice of a professional or the relevant authority and always get your answer in writing. If there's anything you don't understand or are unsure of, contact a solicitor with specialist knowledge.
I got the impression some people have the opinion that planning deparments and other licencing authorities only exist to extract money from people. This isn't the case as the work they do has to be done and people don't work for free.
Finally, since the Exisemen were had over by the Moonrakers a few hundred years ago, they've seen every trick and dodge you could ever dream of, so don't bother trying (to be clear, I know the original poster had a genuine question and is trying to do things by the book).