RT Book T1 School security: a physical security handbook for school security managers, desk reference to support new or updated security plans, five step process - checklists - updated best practices A1 Philpott, Don LA English PP Longboat Key, Florida PB Government Training YR 2010 UL https://krimdok.uni-tuebingen.de/Record/1608417425 SN 9780984403851 K1 Schule K1 Sicherheit K1 Sicherheitsmaßnahmen K1 Bedrohung K1 Gewalt K1 Prävention K1 Amok K1 School shooting K1 Intervention