Harriet Ruth Harman QC is a British solicitor and Labour Party politician who has served as a Member of Parliament since 1982, first for Peckham, and then for its successor constituency of Camberwell and Peckham since 1997. Harriet Ruth Harman QC is a British solicitor and Labour Party politician who has served as a Member of Parliament since 1982, first for Peckham, and then for its successor constituency of Camberwell and Peckham since 1997.