"In May 1909, Oscar Slater was sentenced to death for murder and released in 1928 with 6,000 compensation. People who campaigned for his release included William Roughead (who published his ""Trial of Oscar Slater"" in 1910), William Park (who published his ""The Truth about Oscar Slater"" in 1927) and by which other author who published ""The Case of Oscar Slater"" in 1912?"
Oscar Slater Peterhead Prison. The following year the Scottish lawyer and amateur criminologist William Roughead published his "Trial of Oscar Slater", highlighting flaws in the prosecution. The circumstantial evidence against Slater included his "flight from justice". The identification evidence was fleeting and otherwise unreliable, prejudiced, tainted, or coached. In particular, Slater was conspicuously contrasted with nine off-duty policemen in his identification parade. Roughead's book convinced many of Slater's innocence; influential people included Sir Edward Marshall Hall; Ramsay MacDonald; (eventually) Viscount Buckmaster; and Sir Arthur Conan Doyle. In 1912, Conan Doyle published "The Case of Oscar Slater," a plea for a full pardon
Oscar Slater for Slater. In 1914 Thomas MacKinnon Wood ordered a Private Inquiry into the case. A detective in the case, John Thomson Trench, provided information which had allegedly been concealed from the trial by the police. The Inquiry found that the conviction was sound and instead Trench was dismissed from the force and prosecuted on trumped-up charges from which he was eventually acquitted. 1927 saw the publication of "The Truth about Oscar Slater" by William Park. The contents of the book led the Solicitor General for Scotland, Alexander Munro MacRobert, to conclude that it was no longer proven that Slater was