After All, It Makes It Easy To Investigate . . .

. . . if the school is in the same building:

The city’s Department of Education is investigating a charter school housed in its own headquarters building following an allegation that student scores on a state test were doctored.

The person accused of test-tampering, Stephanie Clagnaz, left abruptly as Ross Global Academy’s principal in the middle of May. She is at least the fifth head of school to leave Ross Global since it was founded two years ago.

The brainchild of the multimillionaire philanthropist Courtney Ross, the charter school is publicly funded but privately run. It is modeled on an eponymous private school Mrs. Ross runs in the Hamptons.

In opening the school, Mrs. Ross received support from New York University, of which she is a trustee, as well as from the Department of Education, which authorized the school and even donated space in its own headquarters to house it.

For the past two years, uniformed children wearing Ross Global insignia on their sweaters have shared Tweed Courthouse’s ground floor with suited bureaucrats.

In that time period, relations between department officials and Ross Global administrators have soured.

Department officials last week described their concerns regarding Ross as “serious” and left open the possibility that the school could be placed on “probation” — a danger signal to parents and administrators — or even shut down.