A school union is to ballot its members over possible industrial action in a dispute with the Department of Education, Sport and Culture.
The National Association of Head Teachers will ask heads and deputy heads after they voted in favour of holding a formal ballot.
The NAHT accused the department of misusing disciplinary proceedings, disregarding agreed policies and procedures, and claims its officials have been victimised.
The postal ballot will open on Monday, July 7 and close on Monday, August 11.
Northern bus services to be raised in Keys
Ben out of service for maintenance work this week
Richmond Hill closed again tonight for work
October warmer and sunnier than usual, says Met Office
MHK queries cost of Liverpool awards trip
DOI says it has 20 empty public sector homes
Marquee plan submitted by Milntown Estate
Fire crews called to free driver from crashed car
