WA’s Education Department has released a damning review after a horror semester at the Kalgoorlie-Boulder Community High School.

The state's Expert Review Group was dispatched after more than 50 students were suspended and a teacher allegedly assaulted since the start of this year.

The review detailed a string of long-term issues with the school's leadership, teaching practices and relationships.

“A cohesive and unified school executive team, with the collective responsibility and professional obligation of all its members does not exist,” the report stated.

Investigators said adherence to department policy and good teaching practice was “ad hoc”.

Additionally, there was no formal recognition of Aboriginal culture at the school either, despite 22 per cent of the student population being Indigenous.

“Little genuine effort has been made to build collaborative relationships among staff, Aboriginal students, families and the community, thus comprising the school's ability to improve educational outcomes for Aboriginal students,” the report stated.

“The appointment of the principal this year was met with genuine enthusiasm and hope.

“Since the appointment, however, some members of [the] executive team are said to have resisted opportunities for achieving a unified direction.

“This has been compounded by the principal's inability to articulate the school's direction and expectations clearly and achieve whole-staff commitment.”

It appears that there was a perception at KBCHS that the extreme behaviours of just a few students created an unsafe environment across the school.

“In response, the school has adopted an aggressive approach to suspension in recent years,” the report stated.

“There is little evidence of any meaningful intervention with these students in terms of long-term behaviour modification.

“Clearly defined expectations for student behaviour do not exist.

“Although staff suggest that students know what is expected of them, they are unable to articulate these expectations or describe the consequences of not meeting them.”

Staff morale was recorded as “disturbingly low”.

“Enthusiasm among staff for extending themselves beyond what they know as the formal requirements of their role is limited,” the experts say.

“The school environment is turbulent, with an undercurrent of uncertainty and frustration about the leadership style and management procedures.

“Staff enthusiasm, resilience and commitment are being tested in these conditions.”

In a statement released through the Education Department, KBCHS principal Ian Masarei said the report would be the impetus for serious changes.

“I will take on board the recommendations and with the other school leaders will make a detailed plan to begin the changes and I am confident we can build from here,” Mr Masarei said.

State School Teachers Union president Pat Byrne blamed the lack of staffing.

“A contributing factor was the inability to fill all of the teaching positions in the school and that is putting significant pressure on remaining staff,” Ms Byrne told the ABC.