He explained to media that investigations revealed a number of details about the Victorian serial killer, "He was a Polish immigrant that came over to Whitechapel in 1881 with his family."
Dr Jari Louhelainen, a senior lecturer in Molecular Biology at Liverpool John Moores University, conducted some of the analysis that led to the identification.
He said that scientific techniques for examining DNA samples had only recently progressed to a level capable of solving the mystery adding that "only now, in the last ten years, would this have been possible."
The name Jack the Ripper originated in a letter written by someone claiming to be the murderer that was widely disseminated in the media. The killer was known as "the Whitechapel Murderer" as well as "Leather Apron".