Then that simply is not Halal.y.
Rubbish. It is halal, halal can be stunned, it jsut has to be alive, stunning does not kill.
And yes most of it is stunned.
http://www.bbc.co.uk/news/uk-politics-18187137
But EU research from 2006 indicated that 75% of cattle, 93% of sheep and 100% of chickens slaughtered in the UK for halal meat were stunned prior to their deaths. Figures produced by the Food Standards Agency (FSA) in 2011 give a similar picture: 84%, 81% and 88%, respectively.
Meanwhile, Denmark and New Zealand have both legislated to ensure that all animals killed for halal meat are stunned first.