• In 1953 he published the
Trial of Jeannie Donald in the "Notable British Trials" Series (William Hodge & Co.). • In 1959 he wrote
The Trial of Peter Manuel: the Man who Talked too much (Secker & Warburg), dealing with the nature of psychopathic murderers as well as the biography of the killer and the legal problems raised in the trial, which, followed by an appeal and the execution of Manuel, had taken place the previous year (1958). • In 1960, he published
Not Proven (Secker & Warburg), accounts of four trials which resulted in that verdict: those of Christina Gilmour in 1843, for the murder of her husband John, by arsenic;
Madeleine Hamilton Smith, in 1857 for the murder, by arsenic, of Pierre l'Angelier in 1857;
Alfred John Monson in 1893 for attempted murder and murder - "In each case the alleged victim was Windsor Dudley Cecil Hambrough. The two crimes were said to have been committed within a few hours of one another"; and John Donald Merrett in 1927, for the murder of his mother by pistol. The book is introduced by a chapter discussing the verdict, "Bastard Verdict?", using
Sir Walter Scott's term of 1827. • His
magnum opus, which he did not live to finish, is
The Law of husband and wife in Scotland. This was first published in 1974, in Edinburgh, by
W Green and Son, 1974, under the auspices of the Scottish Universities Law Institute, having been completed after Sheriff Wilson's death by Eric M. Clive (later Professor of Scots Law in the
University of Edinburgh), who writes in the
Preface: "it is a work of successive rather than joint authorship. Of the book as it now [i.e. first edition] appears, Chapters 3, 4, 16-19 and 25 (as well as most of the section on
Canon law in Chapter 1 and the section on evidence of adultery in Chapter 23) were written by Sheriff Wilson." This text is now in its fourth edition (1997), having passed through a second edition in 1982 and a third in 1992. • In 2016, his son (John) Mark Wilson published a novel whose manuscript he left at his death,
The Old Innocent, based on the
Sandyford murder case of 1862. The novel is a first person narrative related by James Fleming, who was accused of the murder during her trial by Jessie McLachlan, who was convicted. It is clear that Sheriff Wilson thought Fleming (called 'The Old Innocent' by
The Glasgow Herald, the only newspaper on his side in a
cause célèbre) to be the murderer. The novel (; Berwick, fantasyPrints) is largely told in Glasgow Scots, and to an extent the character of Fleming has affinities with that of the central character of ''
Holy Willie's Prayer'',
Robert Burns's biting satire on the hypocrisy he saw in the
Scottish Kirk. Wilson, born in
Irvine always felt kinship with Burns, who had lived there in 1781-2. ==Political career==