Ben Pullar, who is autistic and has bi-polar disorder, had two teeth knocked out when he was a patient, then aged 18, at Winterbourne View.

BBC: Winterbourne View: New inquiry into earlier abuse claim

Correspondence kept by the hospital reveals that aged 67 he was still a patient.

UNESCO: UK National Commission for UNESCO - A relic to a forgotten era: over a century of material documenting the medically incarcerated linked with Wellcome Trust in new project