 Brooke later claimed he had passed on concealed documents, including codes, on behalf of the National Alliance of Russian Solidarists.In later years, Gerald Brooke taught Russian language, "inter alia", at the Languages Faculty of the University of Westminster (the same institution as had been called Holborn College, and which was also called, during the 1970s and 1980s, the Polytechnic of Central London).The Languages Faculty was based in Euston Road, London.