Burke and Hare murders doctors, the Burkes and Hares were charged with murder. As part of his investigation Christison interviewed Knox, who asserted that Burke and Hare had watched poor lodging houses in Edinburgh and purchased bodies before anyone claimed them for burial. Christison thought Knox was "deficient in principle and heart", but did not think he had broken the law. Although the police were sure murder had taken place, and that at least one of the four was guilty, they were uncertain whether they could secure a conviction. Police also suspected there had been other murders committed, but the lack of bodies hampered
Trams in Edinburgh 1956. At Pilrig, the cable trams running along the busy Leith Walk route crossed the city boundary between Edinburgh and Leith. When the Leith system was electrified in 1905, passengers had to transfer between the two modes, in what became known as the 'Pilrig muddle'. This lasted until electrification of the Edinburgh system, with the first through tram running on 20 June 1922. The Edinburgh Street Tramways Company was originally authorised by an 1871 Act of Parliament to construct tramways in Edinburgh, Leith and Portobello. Their first horse tram service began on 6 November 1871. It ran from Haymarket, via