The NHS sanctioned the use of electric shock aversion therapy on gay and transgender people in a bid to change their sexuality or gender identity, a new investigation has uncovered. The Peter Tatchell Foundation has documented that such practices, which have no scientific basis, were administered within the National Health Service between 1967 and 1973, with roots potentially stretching back further.

The BBC, which has led the investigation, reports that the government is now set to probe the historical use of this therapy in NHS settings. One survivor, 80-year-old Pauline Collier, described her harrowing experience: "He taped electrodes to my arms and gave me a series of shocks. They made me sweat and flinch." Another individual recounted receiving treatment so severe they lost consciousness and awoke three days later in hospital.

Many of those subjected to the procedures were referred by figures in positions of trust, including teachers, priests, and GPs. Survivors have stated they did not give informed consent and were explicitly instructed not to tell their parents about the nature of the "treatment".

The findings have prompted calls for a formal apology from the government and the NHS, led by Lord Chris Smith, the UK's first openly gay MP. The BBC traced two doctors involved in administering the therapies; one is now considered too elderly to be held accountable, while the other has refused to respond to correspondence.

Although such state-sanctioned practices are now historical, campaigners warn that pseudo-treatments aiming to suppress or change sexuality or gender identity persist in the UK today, often operating under the radar. Those affected are urged to contact the National Conversion Therapy Helpline for support.