I think you will find most governing bodies can dismiss for gross misconduct as they in most cases are the employer in fact if they do not act where a teacher is not capable of doing thier job for what ever reason ( and this case i would say put the head and some others easily with in the catragory of being unfit ) they could find themselves liable
see
http://www.legislation.gov.uk/uksi/1...ulation/3/made
The Education (Teachers) Regulations 1993
* 1993 No. 543
* PART I
* Section 3
saying that i am sure they did leaise with thier local authority for advice but it still falls to them as employers