SIGMA Research Grey literature collection of publications relating chiefly to qualitative and quantitative social research reports relating to HIV and sexual health but also including documents relating to government policies and legislation, epidemiology and international conferences on AIDS. The papers comprise of reports, booklets, leaflets, periodicals, conference abstracts and questionnaires that are chiefly organised by subject and location including separate sections for 'Non-UK Grey Literature', 'UK HIV Basic Research', 'UK HIV Policy' and UK HIV Resource Documentation'. The collection includes publications produced by the SIGMA Research group and correspondence from various UK House of Commons Members of Parliament from lobbying on sexual health issues such as opposition to Section 28 (or Clause 28) of the Local Government Act 1988 and amending the Criminal Justice Bill on age of consent for homosexual activity legislation. The grey literature originates mainly from university based research groups but also includes reports from intergovernmental agencies, central government, local government and voluntary organisations. 1987-2010