You think this is far fetched? Think again.

A system of presumed consent will take effect on 1 December, where people will have to opt-out if they do not want their organs used after death.

Living donors who lack the mental capacity to express a view could also be deemed to consent to donation by experts acting in their best interests.

Health Minister Mark Drakeford said the "fundamental change" gave hope to over 200 people in Wales needing new organs.
Under the new law, people are invited to register their wish to donate their organs or not, with the assumption that they consent to donation if they do not register a view.
http://www.bbc.co.uk/news/uk-wales-politics-34443339

Mengele would be proud.