Excerpt:

The recent FBI raid at the Des Plaines headquarters of Concept Schools focused on many of the politically connected charter-school operator's top administrators and companies with close ties to Concept, according to federal documents obtained by the Chicago Sun-Times.

Authorities last month said FBI agents carried out raids at 19 Concept locations in Illinois, Indiana and Ohio as part of an "ongoing white-collar crime matter" but declined to provide further details of their investigation.

Copies of the search warrants that FBI agents served in Des Plaines and a subpoena seeking records show investigators went hunting for a wide range of documents pertaining to Concept president Sedat Duman, founder Taner Ertekin and other current and former executives of the fast-growing charter network.


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