Harman was later involved in a European Court of Human Rights case against MI5. During a 1984 television interview by Cathy Massiter, it was revealed personal files were held by MI5 on Harman and on the (by then former-) General Secretary of the NCCL, Patricia Hewitt. They successfully argued that there had been an infringement of their rights because MI5 was not a legally constituted and democratically accountable organisation, this being the minimum standard in democracy. The success of the case led to enactment of the Security Service Act 1989.