[citation needed] She was called to the Bar at the Inner Temple in 1977 and worked as a Legal Advisor for the Dairy Trade Federation from 1979 to 1980.

Numerous positions as Shadow Minister or Lead spokesperson House of Lords 1999 to 2007 including Education and Skills; DCMS; Home, Constitutional and Legal Affairs; Cabinet Office; Social Security and Trade & Industry.

[4] She has been a Conservative front bench spokesman in the House of Lords on several briefs including Business, Innovation and Skills; Culture, Media and Sport; Education; and Home Constitutional and Legal Affairs; and was also a member of the Joint Committee on Human Rights.

[7] She has voted moderately against introducing ID cards, more EU integration, a stricter asylum system and the hunting ban.

She became Chief Executive of the Advertising Association from 2007 to 2009, where she led the implementation of the Change4Life campaign, a Government-sponsored scheme backed by consumer and media brands which was designed to tackle obesity across the UK.

Marketing Week editor Stuart Smith described Buscombe as "the most formidable advocate the commercial communications sector has seen in years".