Canadian psychiatrist Aubrey Levin has been arrested after being accused of sexually assaulting a patient. Dr Levin, 71, had previously performed medical experiments on lesbian and gay members of South Africa's apartheid army.

The regime forced gay soldiers to undergo a number of unethical, and medically dubious, practices such as gender reassignments, chemical castration and electric shock treatment.

Most of the regime's victims in the field of attempting to cure soldiers of same-sex attraction were white male conscripts.

Levin, also known as "Dr. Shock" because of the methods he used to try and "cure" gay soldiers, fled his home country for Canada in the 1990s. He is due to appear in Alberta's provincial court on April 8.