The Centre for the Protection of National Infrastructure (CPNI) has produced a short film for security staff on how to deal with an unattended bag once it has been identified.
Further guidance regarding planning and delivering effective premises searches can be found on the building and area search page www.cpni.gov.uk/building-and-area-search. Also, businesses and organisation can maximise safety and security using existing resources. See, Check and Notify (SCaN) training empowers staff to correctly identify suspicious activity and what to do when they encounter it.
CPNI's YouTube page has many short educational films to help those in security reduce vulnerability to terrorism and other threats.