How to conduct a hanging

Lethal injection (PDF):

This might be of interest: http://en.wikipedia.org/wiki/Capital_punishment_by_the_United_States_military

Eisenhower and then JFK approved the last actual execution of a U.S. serviceman: http://en.wikipedia.org/wiki/John_A._Bennett

Charcoal burning would be my preferred method, probably combined with anaesthesia of some sort.

A few years ago, Michael Portillo looked into various methods for a Horizon documentary and settled on hypoxia using some more-or-less inert gas (most likely nitrogen) based on veterinary studies (and some time in a hypobaric chamber).

Interestingly, the notion wasn’t all that well-received. The folks he spoke with at the end of the program felt it was too humane.

For thoroughly gruesome details, go to http://www.capitalpunishmentuk.org/hanging2.html. Actually, after the introduction of the UK drop tables in the 19th century, if one must have capital punishment, then long-drop hanging seems much quicker (less than 20 seconds) than the protracted ritual of lethal injections