Terran National Intelligence Agency

The Terran National Intelligence Agency, referred informally as the TNIA, and colloquially as "spooks", is an agency under the Terran Space Command tasked with intelligence gathering. However, the scale of the operations conducted by ONI is actually far broader than anyone could ever imagine.

The TNIA has gained notoriety in recent years due to their Machiavellian tactics, with some politicians accusing the organisation being "a tumour that infects the Commonwealth's democratic ideals." Regardless of their tactics, the agency states that their duty to the Commonwealth's safety comes first over any moral code.

Origins
Prior to its creation after the Interplanetary War, the predecessor to ONI—Interpol—was the primary organisation utilised by the United Earth Government to gain information from its ignorant citizens. When the Frieudians and the Koslovics emerged from the shadows, the importance of Interpol would grow as various world governments would hire its services so that they may maintain the stability of their nations during this trying period. After the conflict had subsided, the UNSC passed a decree for the formation of a new intelligence agency, based primarily on the principles of Interpol.

Any other competitors were quickly incorporated into ONI. Those who resisted were silenced efficiently and decisively.