How free is religious debate?

How free is Britain, especially when it comes to the vexed issue of religion?

Scientology, that new age religion of L. Ron Hubbard, has thousands of committed adherents.

But if you believe that it’s a cult are you allowed to stand outside their buildings with a placard saying so?

Are you allowed to stand outside any place of religion calling it a cult?

A group of anti-Scientology protestors have felt the firm hand of the law recently.

Article contains a video of a debate from Channel 4.