Detainees claim they have been strangled, beaten and dropped down aircraft steps while being deported by private security firms, according to a damning [Amnesty International] report that calls for a "complete and radical overhaul" of the government's removals process. The report...also documents cases in which foreign nationals, being removed from the UK, have ended up with broken bones...The report, seen exclusively by the Guardian, refers to concerns that private companies hired by the Home Office to remove failed asylum seekers are not properly training their guards. Some guards have used "non approved restraints", such as crude body straps and trouser belts, to hold deportees in their seats. [also refers to G4S, British Airways, Reliance Secure Task Management]