LONDON — It is not a great idea to carry a plank of wood down a busy sidewalk. Nor should you ride a horse while drunk, or handle a salmon under suspicious circumstances.

But should such antics be illegal? Still?

Thanks to centuries of legislating by Parliament, which bans the wearing of suits of armor in its chambers, Britain has accumulated many laws that nowadays seem irrelevant, and often absurd.

So voluminous and eccentric is Britain’s collective body of 44,000 pieces of primary legislation that it has a small team of officials whose sole task is to prune it.

Their work is not just a constitutional curiosity, but a bulwark against hundreds of years of lawmaking running out of control.