Walter Dew
Walter Dew was a CID officer in 1888 and was attached to the H or Whitechapel Division of the Metropolitan Police.
Martha Tabram Investigation
In his memoirs he questioned Mary Ann Connelly's witness value during the Martha Tabram investigation.
Annie Chapman investigation
In relation to the Annie Chapman investigation, Dew also confirmed that the police investigation followed the general consensus that the murderer was a madman who had escaped, or been recently released, from a lunatic asylum. He stated: "This angle of investigation was pursued relentlessly".