Strategic Coordinating Groups ( SCGs) often require expert advice on a range of scientific and technical issues in order to deal effectively with the immediate and longer term consequences of an emergency. This expert advice must be coordinated and can come from a range of agencies and cover a variety of areas such as public health, environment, animal health, water, technical failures, etc.
This guidance is part of the Scottish Government's Preparing Scotland resilience guidance ( Ready Scotland: Preparing Scotland), drawing also on the UK Cabinet Office's guidance  to allow provision of expert advice through establishment of a Scientific and Technical Advice Cell ( STAC).
The purpose of this STAC guidance is to provide a core basis for providing expert and timely advice to an SCG. This guidance is flexible and adaptable in recognition of the differing structures, capacities and practices that exist in responding to emergencies across Scotland. The guidance should therefore be tailored to fit the local circumstances. Part 2 should be adapted to allow the development of localised practical guidance.
This guidance updates the previous 2008 guidance with lessons identified in previous exercises and an evaluation of the Interim Multi/Primary STAC Guidance (issued February 2010).
As with all Preparing Scotland guidance, the STAC guidance will be reviewed periodically to ensure it remains reflective of the needs of the Strategic Coordinating Groups for the provision of scientific and technical advice during emergencies.