Wales could get its first court based on Islamic law under proposals from a Muslim body, BBC Wales has learned.
A Sharia law tribunal in Cardiff will help community relations and give some Muslims services they want, supporters have told the Dragon's Eye programme.
But some commentators, such the think-tank Civitas, say a Muslim arbitration tribunal undermines the concept of one law for UK citizens.
A women's group said it was not needed and women may not be treated fairly.
A Tribunal has been proposed for the middle of next year, and its backers say it will bring the law and Muslim faith together.