An investigation has found that an East St. Louis school principal helped students cheat on achievement tests and devised a code to warn teachers about investigators in the building.
The Belleville News-Democrat reports that Officer Elementary School's former principal Ronald Ferrell allowed students to correct wrong answers on achievement tests.
And teachers told investigators that Ferrell showed them how to pry open the Illinois Standards Achievement Test to see what was on it.
The report, released by East St. Louis School District 189, says Ferrell broadcast a code on the intercom if investigators were in the building.
The code was "Mr. Lincoln, please come to the office."