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It is more than four years since the UK's first so-called buffer zone was set up outside an abortion clinic in the London borough of Ealing.

The aim was to prevent anti-abortion campaigners approaching - and often upsetting - patients.

Pro-choice campaigners had hoped buffer zones - which are legally-protected spaces - would soon become the norm.

But since 2018, only two more have been created in England, and Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Newsnight has been told women are being regularly harassed.

Anna Collinson reports.