The map that's building boundaries among MPs

Available for over a year

A new jigsaw puzzle of Westminster constituencies is being drawn up - but many pieces are not yet in place. Shaun Ley meets officials at the Boundary Commission for England to find out how they and sister commissions in Scotland, Wales and Northern Ireland are dividing the UK into 600 new blocks. He also hears from those who have navigated previous reviews successfully and those now feeling the heat.