The implementation of the National Association of Secondary School Principals (NASSP) Assessment Centre at Hawthorn Leadership Assessment Centre (HLAC) is a part of The University of Melbourne s post-graduate syllabus. At the completion of an assessment centre assessors were interviewed. Their perceptions indicate that H LAC is an effective professional development activity for participants and assessors alike. This finding emerged through the implementation of a semi structured interview schedule. The study also found that assessors believed a more culturally relevant model reflective of local practice be explored or incorporated into the franchised NASSP model.