Herman Karl Lamm (April 19, 1890 – December 16, 1930), known as Baron Lamm, was a German-American bank robber.
His robberies paid close attention to detail of the target properties, and he has been described as "the father of modern bank robbery".
A former Prussian Army soldier who immigrated to the United States, Lamm believed a heist required all the planning of a military operation.
He pioneered the concepts of meticulously "casing" a bank and developing escape routes before conducting the robbery.
Using a meticulous planning system called "The Lamm Technique", he conducted dozens of successful bank robberies from the end of World War I.
In 1930, Lamm committed suicide when surrounded by a law-enforcement party in Sidell, Illinois, after a botched heist.
Lamm's techniques were studied and imitated by other bank robbers across the country, including the famous John Dillinger.