BBC News website is reporting that David Davis, Shadow Home Secretary and MP for Haltemprice and Howden is to resign as an MP.

The Times today had a story that he told David Cameron that he would rather resign than support the Government’s efforts to extend the period of pre-charge detention beyond 28 days. With the Conservatives having opposed the Government, David Davis should have been appeased, which begs the obvious question – what has led him to resign?

UPDATE: Lib Dems may not run against Davis in the by-election according to Nick Robinson on the BBC. Davis speaking now. (12:59)

SECOND UPDATE: Dominic Grieve QC, MP for Beaconsfield, will be taking David Davis’ former role as Shadow Secretary of State for Home Affairs. (13:30)

Morus