The Security Orb is an object used by the Time-Police, in the same manner that The Warden uses Jailbot. In the Season 3 episode "Oedipus Mess", the orb was forced to kill two Jacknife clones for causing trouble in Time Court's mall. The orb itself is a large black orb that is covered with electricity.
It does not seem to care what it kills. Unlike Jailbot, the Security Orb doesn't avoid killing innocent children.