Markson has at times engaged in undercover journalism . While working for '' The Sun '' in London she posed as a PR executive requiring an escort in order to report on high-end male prostitutes . In 2005 , she visited a hospital ward " looking upset , with a bunch of flowers " in order to interview John Tulloch , a survivor of the 7/7 London bombings . In 2014 , Markson went undercover at Sydney universities , attending media lectures . She alleged that students were being influenced by the anti-News Corp beliefs of their lecturers
7/7 London bombings
7 July 2005 London bombings
Sharri Markson