After he graduated from school, he studied theology and, in 1934, he changed to prehistory and anthropology and ethnography at the Martin-Luther-University of Halle-Wittenberg, where he finished with the degree of a doctor in 1939.
[2] Dieck has put a new view of sight on the interpretation of bog body finds not only being a small regional and cultural phenomena.
Dieck clearly stated that the earliest bog body finds dated to the Mesolithic period and the youngest to World War II.
Over a period of more than 50 years, Dieck published a variety of special articles about stomach and colon investigations, individuals being tattooed, scalped, or being circumcised.
For their Master thesis at the University of Hamburg, Sabine Eisenbeiß and Katharina von Haugwitz compared Alfred Dieck's personal archives with reliable sources for finds in Lower-Saxony and Schleswig-Holstein.
[4][5] Wijnand van der Sanden checked Dieck's reports of Dutch finds and reached the same result.