Brangdon... since this is an open forum, and the procedure is still in use, I did not use the actual term , which is not that ambiguous...the call was to the front desk and to trained staff members....it is initiated by suspicion and not actual knowledge... most teachers are not gun people...this was a threat we needed to address post Columbine and considered a viable solution..additionally, a student could be sent to the office carrying the "yellow folder" with a seating chart included, and the suspicious student's desk identified