Joe Deebs was a fictional detective who appeared in a series of German films and serials during the silent era. Deebs was played by several different actors including Max Landa, Heinrich Schroth and Harry Liedtke. A number of directors worked on the films, with Joe May making the most. Deebs' first appearance was in 1915 during the First World War and he continued into the early 1920s during the Weimar Republic.
Along with Stuart Webbs, and other detectives with Anglo-Saxon names, he was modeled on Arthur Conan Doyle's Sherlock Holmes.
References
Joe Deebs Wikipedia(Text) CC BY-SA