Woman's Hour misleads on "extreme porn"
Let's be clear: It's just a bit dishonest to say that the search for evidence that this material causes harm is "inconclusive"; the evidence is that people have tried for decades to establish any link between pornography and harm, and have been unable to find support for it. There is a point at which the consistent failure to find that link is pretty strong evidence that this line of enquiry is a waste of time that deflects resources from more fruitful and promising courses.
Moreover, the casual assurances of these guests that the police would take civil liberties concerns on board are at best naive; that's not how it works in the real world, as history has repeatedly shown. You may want to ask Women's Hour why this show had no speaker who understood the concerns of people who oppose this legislation.