Humane execution and the fear of the tumbril (3)

From Archie Campbell, Cambridge, UK

I welcome trials of the stunning of chickens using low oxygen levels, which lead to death with no warning. It is incomprehensible, though, that the UK Home Office promotes carbon dioxide for the killing of certain laboratory animals. This is a cruel method since it triggers gasping, a feeling of suffocation and panic. Perhaps civil servants should be asked to try a lungful of CO2 to see if they would still advocate its use for humane killing.