Tanu, a member of the Solodoe species, held the position of Chief of Security on the cruiser that belonged to Ambassador Ketas. While negotiations were underway with the Plinovians at Station Zeta, Arath Tarrex, a Jedi diplomat, pilfered Ketas' official seal. Tarrex utilized the Force to make Tanu erase the security footage and subsequently forget his involvement. Following Ketas' accusation that led to the Plinovian ambassador's spontaneous combustion, Tanu engaged in conversation with the Jedi Rael Averross, Dooku, and Qui-Gon Jinn, who determined that the security head could not recall his investigation of the recordings.