Burke and Hare murders and for regulating Schools of Anatomy" in mid 1828—six months before the murders were detected. This was rejected in 1829 by the House of Lords. The murders committed by Burke and Hare raised public awareness of the need for bodies for medical purposes, and of the trade that doctors had conducted with grave robbers and murderers. The East London murder of a 14-year-old boy and the subsequent attempt to sell the corpse to the medical school at King's College London led to an investigation of the London Burkers, who had recently turned from grave robbing to murder to obtain corpses;
Whitechapel murders abandoned because the trail of scents was confused in the busy city, the dogs were inexperienced in an urban environment, and the owner Edwin Brough of Wyndyate near Scarborough (now Scalby Manor) was concerned that the dogs would be poisoned by criminals if their role in crime detection became known. On 27 September, the Central News Agency received a letter, dubbed the "Dear Boss" letter, in which the writer, who signed himself "Jack the Ripper", claimed to have committed the murders. On 1 October, a postcard, dubbed the "Saucy Jacky" postcard and also signed "Jack the Ripper", was received by