The Deep Space Interceptor is used by New Caledonia to attack pirate craft and ensure the safety of those who travel in the Caledonian solar system. The Commercial Enforcement version of the upgrade may be seen here. Used to escort Commercial Inspectors in their shuttles to ensure that freighters and passenger craft are following the trade and commerce laws, these craft help police and enforce mandates. Let's put it this way, if you are told to "heave to" for inspection and you try to run, you might find your hull pierced by holes the size of a human torso.
Twin particle accelerators, 4 .50 cal. projectile weapons, electronic warfare system and a military grade scanner/sensor system help enforce Commerce Laws.