Patrick Corrigan, Amnesty International’s Northern Ireland director, said what The Detail had uncovered was of “serious concern”.
The training will be provided by some of the world’s leading journalists and security researchers
“No one is trying to do them any cause or damage by putting that sign up, it's just an expression of our love for our language, our love for our place names."
The minimum age of criminal responsibility in Northern Ireland is 10 – one of the lowest in Europe.