Ok, so first thing's first, shotguns are only dangerous in dangerous hands, and the idea that a shotgun is any more dangerous in the hands of a blind person really is misguided. The basic rule of handling any firearm is never point it at anyone, whether loaded or not. That way you'll never make a mistake.
Earlier today, we headed in to the shooting zone to listen to clays flying through the air, and then attempted to shoot them down. I'm pleased to say that I obliterated 4 clays... but before getting too excited, I discharged 40 - 50 cartridges, and one shot was aimed for me... but I've definitely been bitten by the bug, and working with Tim and Alex at the Lea Valley Club, we're now planning to design a proper method for blind shooting. It may involve a bell on a clay, or even just some paper taped to a clay to increase it's sound in the air... so keep it here for the eventual solution.
And so now bitten by the bug, it occurs that there is no specific reason in law why I as a blind person should be denied a shotgun license. You can be refused if you are a prohibited person (i.e. a criminal who has ever been sentenced to more than 3 years in jail, or a criminal sentenced to more than 3 months, but less than 3 years, within the last 5 years). You can also be denied on medical grounds if you pose a risk to public safety, or your own safety, but anyone who investigates the topic a little bit would easily see that as long as certain steps are taken by the blind person applying, there is no public endangerment. Truth be told, at this stage, I've just sent an email to the Herts Police for guidance before actually applying - but I'm really tempted. I'll let you know what they say.