units can also be used to provide examples that can help your committee analyze possible threats.
The Installation Vulnerability Determining System (IVDS).
To help in determining the vulnerability of an installation to a terrorist threat, the IVDS system was
created. Combined with crime prevention physical security surveys and terrorist threat intelligence,
IVDS can provide the installation commander and/or the threat committee with a guide to potential
The following factors are reviewed to determine the installation vulnerability:
o Installation's characteristics and its attractiveness as a target for terrorist acts.
o Status of training.
o Civilian law enforcement resources.
o Time and distance from U.S. military installations able to lend assistance.
o Time and distance from urban areas.
o Geographic region.
o Proximity to foreign borders.
o Access to installation.
o Population density.
The IVDS system uses a scale of 0 to 100 points. Points are assigned for each factor. The higher the
value, the higher the assessed vulnerability. It must be remembered that no factor is a determinant by
itself. The relationship between factors must be considered also.
There are two factors that an installation commander or PM can significantly influence to reduce the
vulnerability level of the installation.
o Attitude of Area Population.
o Law Enforcement Resources.