A city schools report into cheating allegations at the elite Stuyvesant High School accused former principal Stanley Teitel of "a complete lack of professional judgment" in handling the situation in-house.

The report by the department's Office of Special Investigations, which was dated Nov. 5, 2012, but publicly released on Friday, said Mr. Teitel "showed an extreme lack of judgment" in handling an initial tip from a student that many students were cheating on Regents exams.

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