A prisoner in Washington State in the United States of America appealed aga
inst sentence of death by hanging on the grounds that it was 'cruel and unu
sual' and hence contravened the Eighth Amendment of the US Constitution. Th
e man weighed 184 kg (406 lb) and it was suggested that the 'drop' proposed
to effect judicial hanging might result in decapitation. This hypothesis w
as tested by applying simple biodynamic principles to the available data fr
om past hangings. It was concluded that decapitation was a significant poss
ibility.