关于“体位窒息死”：Positional asphyxia, also known as postural asphyxia, is a form of asphyxia which occurs when someone's position prevents them from breathing adequately. A significant number of people die suddenly during restraint by police, prison (corrections) officers and health care staff.[1] Positional asphyxia may be a factor in some of these deaths.

Positional asphyxia is a potential danger of some physical restraint techniques,
People may die from positional asphyxia by simply getting themselves into a breathing-restricted position they cannot get out of, either through carelessness or as a consequence of another accident.

From wiki： http://en.wikipedia.org/wiki/Positional_asphyxia

不知道wiki的解释与唐兄的理解是否有出入？

引自唐兄：所不同的，监狱管理方提出了一个更科学的名词“体位窒息死”，这让我想起武松进了监狱后，听众囚徒所介绍的“盆吊”与“布袋压杀”，按照我的理解，这两种酷刑都属于“体位窒息死”的变形。