In London's historic "Inns of Court", barristers practise law in the shadow of the distinctive medieval Temple Church. But does English law really owe a debt to Muslim law?
For some scholars, a historical connection to Islam is a "missing link" that explains why English common law is so different from classical Roman legal systems that hold sway across much of the rest of Europe.
It's a controversial idea. Common law has inspired legal systems across the world. What's more, calls for the UK to accommodate Islamic Sharia law have caused public outcry.