Society osteopath Stephen Ward, who committed suicide after he was put on trial following the Profumo scandal in the 1960s, was innocent, according to a new book by a leading lawyer.

Geoffrey Robertson, QC, has conducted an examination of the trial of Ward, who committed suicide in despair after the judge's summing up and before his conviction on charges of living on the earnings of prostitutes.

It is claimed the book demonstrates Ward was innocent and that Christine Keeler and Mandy Rice-Davies were not prostitutes, and they lived off his earnings as a successful osteopath and portrait painter.

The author argues that Ward was made a scapegoat for his role in the Profumo affair by Home Secretary Henry Brooke, who improperly ordered the police to begin a witch-hunt.

Ward, Keeler and Rice-Davies were key figures in the 1963 sex scandal, which threatened to topple the Tory government of the time.

The book Stephen Ward Was Innocent, OK, is being lodged today with the Criminal Cases Review Commission as an application to have Ward's conviction overturned.

Among those at yesterday's news conference were Rice-Davies and composer Andrew Lloyd Webber, who has created a new musical, Stephen Ward, on the subject.