A Boston Public Schools review of 115 alleged racial incidents at Boston Latin School found at least 17 cases since 2012 where administrators, teachers or students did not properly follow BPS procedures.

The investigation found that in four out of 34 complaints of alleged racism, teachers failed to follow policies governing their conduct toward students. The review also found that in seven of 39 alleged incidents of racial conflict between or among students, a student violated BPS policy.

The BPS report referred to racially-tinged or racially-inflammatory conduct as "bias based".

According to the report, BPS Office of Equity reviewed 11 incidents that occurred before January of this year and were alleged to have been improperly handled by administrative staff. In six of those cases administrators failed to "appropriately investigate, document, and/or take steps to prevent recurrences of bias-based conduct."

The review follows reports racial tension at the school, which – after a degree of political turmoil – led to the resignation in June of headmaster Lynne Mooney Teta and assistant headmaster Malcolm Flynn.

"The Office of Equity has thoroughly examined every concern raised by a BLS student or employee since the issues were brought to our attention in January," schools Superintendent Tommy Chang said in a statement. "We take every concern regarding possible bias seriously. We will continue to focus on supporting BLS students, parents, staff and administrators as we move forward as a community to foster and sustain an environment where all feel valued and can flourish."

A separate "racial climate assessment" of Boston Latin School, conducted by nonprofit consultancy Visions Inc., found, among other things:

That assessment also noted the findings were consistent with other "racially diverse and demographically challenging" schools around the country.

Recommendations of the assessment included administration and faculty training, creating a "BLS Diversity or Equity Committee, changes to the curriculum, classroom discussions of race, involving parents, improved communication, increasing the diversity of the school, encouraging the reporting of incidents, and conducting "racial climate audits."

Read The Racial Climate Assessment Report For Boston Latin School: