Federal authorities have charged Ian Roberts, the former superintendent of Iowa’s largest school district, with possessing firearms while in the U.S. illegally.

The superintendent of Iowa’s largest school district, who was detained last week by immigration agents, falsely claimed a doctoral degree when applying for the job two years ago but was hired even after the school board learned about the misrepresentation.

The public schools superintendent of Des Moines, Iowa, has resigned while challenging his deportation after being detained by immigration authorities.