Forum:Dark Lord novel - Internal Security Bureau?

Greetings all,

I'm currently reading Dark Lord by Luceno, and he mentions Armand Isard as the chief of the Internal Security Bureau (p 164 of paperback). There are two obvious problems with this in my mind: 1) Armand Isard is chief of Imperial Intelligence 2) There is no Internal Security Bureau - only the Imperial Security Bureau, which Isard was certainly not affiliated with.

What's the consensus on this? Is Internal Security Bureau yet another sub-branch of ImpIntel? Or did Luceno just completly confuse the established canon there?