From 1930 to 1933, he was a member of the Cook County Board of Commissioners.
He served as a Judge of the Circuit Court of Cook County from 1933 to 1944.
[2] LaBuy was nominated by President Franklin D. Roosevelt on March 7, 1944, to a seat on the United States District Court for the Northern District of Illinois vacated by Judge William Harrison Holly.
He assumed senior status on January 31, 1961, serving until his death in Chicago on September 29, 1967.
[2][3] LaBuy presided over the well-known trial of automaker Preston Tucker.