Her interest in politics increased following her husband's death and Ewart-Biggs joined the
Labour Party. She attempted to become an
MEP, given her knowledge of the European Community from her husband's posting in Brussels. The party were wary of her background and lack of constituency experience, which also led to her not being selected as a candidate for the
Greater London Council. From 1984 she was President of the
British Committee of the
United Nations Children's Fund. After conducting constituency work, she became a
life peer as
Baroness Ewart-Biggs, of Ellis Green in the county of
Essex, on 22 May 1981, making her maiden speech in the
House of Lords on Britain in the
European Economic Community on 17 June 1981. Lady Ewart-Biggs spoke on home affairs, Ireland and was on committees dedicated to helping people. In 1983 she was appointed Labour front-bench spokesman on home affairs, and additionally consumer affairs and overseas development in 1987. In 1988 she became an opposition whip. She was a founder member of the Council of
Charter 88 and in 1989 wrote a public letter on its behalf to Prime Minister
Margaret Thatcher calling for a written constitution. She was described by fellow peer
Alma Birk as "considerate, helpful and with a sense of humour" and said that "she was a popular and highly regarded member of the House of Lords (where I first met her) and much loved by the Labour group of peers". ==Health problems and death==