I would like to praise Laura Devine for her excellent article ‘Brexit: the bigger picture’.

This is a dispassionate account of one of the most important issues to consider in deciding how to vote in the forthcoming referendum. It is a pity that more politicians, and the national press, are not able or willing to discuss so clearly the likely impact of voting one way or the other on, for instance, immigration law.

David Percival, London WC2