Legislation now before parliament will reform how parliamentary constituencies are drawn up. Most controversial is a proposal that the recommendations of the independent boundary commissions should be implemented automatically. Alan Renwick and Robert Hazell argue that the principle of automatic implementation is right, but it should be combined with stronger safeguards on the commissions’ independence. 

The government’s Parliamentary Constituencies Bill was debated in the House of Commons for the first time earlier this week. The bill, if passed, will keep the number of MPs at 650, cancelling a cut to 600 that was legislated for in 2011 but has not yet been implemented. It will also alter the procedures for drawing up Westminster constituency boundaries, in four main ways. First, it will reduce the frequency with which boundaries are reviewed, from five- to eight-year intervals. Second, it will slightly shorten the duration of the next review (but only the next one), from 34 to 31 months, to ensure its conclusions can be implemented in good time for a 2024 election. Third, it will adjust the sequence of the review process, so that public hearings on proposed boundaries take place after an initial round of written submissions. Finally, and most importantly, it will make the implementation of new boundaries automatic: parliament will lose its current power to block the proposed changes.

Cancelling the cut in the number of MPs is no longer controversial. That reduction was introduced in 2011 in the wake of the MPs’ expenses scandal, when public scepticism about the value of MPs’ work was at a peak. It was designed to show that ministers understood people’s anger about perceived waste at the heart of politics. Since then, however, parliament has done much to reassert its value. MPs have become more independent-minded in holding government to account. Following reforms implemented in 2010 – some of which were strongly based in earlier Constitution Unit research – select committees have risen greatly in prominence, and are now widely seen as doing much important work. Furthermore, many constituents were discomfited when they saw that cutting the number of MPs would reduce their own local representation at Westminster. The cross-party support that exists for retaining 650 MPs is therefore welcome.

Some of the changes to review procedures have, however, proved more contentious. In particular, opposition parties have argued against the introduction of automatic review implementation. Speaking in the Commons on Tuesday, both the Shadow Minister for Voter Engagement, Cat Smith, and SNP Spokesperson David Linden called it ‘a power grab’ by the executive over the legislature. Labour’s Stephen Kinnock described it as ‘nothing short of a constitutional outrage’. Continue reading →