Whilst a number of schools are carrying out adhoc lockdown drills, if a serious incident does arise, a pre-recorded alarm and message is played from a tannoy, with pupils getting under tables, teachers locking classroom doors, lights being turned off and window shutters pulled down — but is this enough? (qaeducation.co.uk)
He pointed out that the school went into lockdown, giving students and etachers time to hide in locked classrooms. (nypost.com)
After a pre-recorded alarm and message is played from the tannoy, pupils get under tables, teachers lock classroom doors, lights are turned off and window shutters pulled down. (bbc.co.uk)