Liaison officer

A liaison officer was a person who represented the interests of their government to another.

In 2405 Lieutenant Junior Grade Kanril Eleya spent six months aboard Deep Space 9 as Starfleet's assistant liaison officer to the Bajoran Militia, due to the service being short on officers who spoke Bajoran and Cardăsda. She had actually applied for a post on the Klingon front, and remarked to her first officer Tesjha Phohl in 2409 that for all intents and purposes she'd been a glorified clerk. (: Bait and Switch)

In 2409 Lieutenant Commander Jaleh Khoroushi held the dual posts of Starfleet liaison to the and operations officer.