[2] He joined the British Army in 1960 and after nearly three years of service, in 1963, he started his career with the Fire Protection Industry where he remained until his election to the House of Commons.

[6] On 28 January 2009, Keen voted against a motion in Parliament calling on the government to review a decision to add a third runway to Heathrow Airport.

Together with his MP wife Ann Keen, the couple used their combined second homes allowances to buy an apartment on the South Bank of the River Thames.

In defending their part in the expenses scandal the Keen's stated "we have advocated, strongly supported, and voted for the introduction of Freedom of Information legislation.

We are pleased that the point has been reached when full details of MPs' expenses are being published on a regular basis for everyone to see".