I think there is a huge lack of understanding, perpetuated both by the Daily Mail pitchfork waving, but also by the Muslim community defending non-stunned meat and their right to it.
The vast majority of meat slaughtered in this country is done on production lines that are near as dammit automated. Chickens are scooped up by their legs, hung upside down and stunned. They then pass over a spinning blade which kills them.
A while ago, some bright spark at the abattoirs realised they could play a tape of relevant holy words while all this was going on, and call the meat Halal.
This doesn't in any way impact on the animal welfare issues of cheap meat, and if you buy cheap meat in the supermarket, or eat in anywhere that uses 'catering quality' meat, you have to be prepared to accept this is how the animal died.
HOWEVER, the issues around halal meat should be focused on a small percentage of it that is killed without stunning the animals first. There are welfare issues around this, as flagged up by the veterinary chief earlier this year.
But the current hysteria is confusing the two (probably deliberately) and trying to give the impression that we are all being fed 'cruel meat' by the backdoor.
The reality is that the vast majority of catering meat is 'cruel meat' whether or not they heard a tannoy during their last minutes.