The personality conflicts mentioned, while unpleasant, are subjective. But if this person really does have forged credentials perhaps you should focus on providing public proof of that. But be careful, you are close to libel here. The "pervert" name-calling seems unwarranted. Provide proof to the Board of Governors or the Ministry of Education that he lied about his academic credentials and - poof - he's a goner.
Mandi