HC Deb 21 March 1973 vol 853 c85W
Mr. Tope

asked the Secretary of State for the Environment how many drivers have died at the wheel from natural causes in each of the last five years for which figures are available; and in how many of these cases an accident involving a third party has subsequently occurred.

Mr. Peyton

This information is not available in the form requested. Evidence collected by the Transport and Road Research Laboratory suggests that about one-half of 1 per cent. of fatal and serious injury accidents follow drivers being taken ill suddenly.