Yesterday was a day of sheer drama as the terror bill was passed in the Commons by the thinnest of margins after genuinely heartfelt debate over balancing security against human rights.

And now we’ve been treated to an even more entertaining event - this morning’s resignation by David Davis, shadow home affairs secretary, ove the same issue; the defence of Habeas Corpus etc. He has already been replaced by Dominic Grieve; not temporarily.

Davis hopes that in the imminent by-election for his seat he can campaign on the single issue of human rights, turning it into a mini-referendum. Although David Cameron has known since last night, he doesn’t seem very enthused by the gesture, describing it as a “private” decision.

Will the move have the intended effect? If Davis didn’t have a rock-solid majority it would be a more brave and selfless manoeuvre.

As it is, he will still win - not least because the Lib Dems and UKIP* will not put up a candidate (Labour is undecided for now). But how will anyone know whether this is because the good people of Haltemprice and Howden, in North Yorkshire, are committed to the ancient liberties of the United Kingdom?

He may increase his majority simply because the locals hate Labour even more than the Tories**. 

* UKIP and the BNP both agree with the Tories on 42 days, they say, making it unlikely they will field candidates - although neither have confirmed this yet 

** See Crewe & Nantwich by-election 

An Ulster Lord has just dropped by to tell me that he will help Davis’s campaign. Not, not from the DUP (who swung Wednesday’s knife-edge vote for Gordon Brown). Lord Laird of Artigarvan, an Ulster Unionist peer, says he despises the alleged deal which will allow Northern Ireland to keep water rates in return for DUP anti-terror backing: “The people of Northern Ireland should realise they are getting cheaper water because some unfortunate guy is in jail”, he thunders.

June 12, 2008 5:38pm in Conservatives, David Cameron, UK politics | Comment