District 17 includes Barrington, Barrington Hills, Fox River Grove, Island Lake, Lakemoor, Lake Barrington, North Barrington, Port Barrington, Tower Lakes, Volo, and portions of Lake Zurich and Round Lake.
North Shore School District 112 launched the investigation, conducted by law firm Franczek P.C., after an unusually forceful letter from the Illinois State Board of Education in August.