We will be closed from 5pm BST on Friday 28th August 2026 for the late summer bank holiday, re-opening at 8.30am BST on Tuesday 1st September. Any orders placed during this period will be processed when we re-open.

The principle in law that the rules are not changed in the middle of game, is embodied in the notion that legislation should apply prospectively. This study analyzes the legal constraints on retroactive legislation and the presumption of prospectivity and constitutional limits on such lawmaking.