For those who don't know what Selkath are, here's a basic description of them: Selkath are an aquatic species and skilled swimmers. They resemble anthropomorphic sting ray with blue, pink, or green skin, acting as underwater camouflage. Their mouths are bracketed with cephalic lobes, which they stroke during conversation, much the same way a human would stroke a mustache.
In the game, we meet this Selkath, whose side-quest is important.
Shaelas: a male Selkath who lived during the Jedi Civil War.
Hating the Sith did not change when his daughter, Shasa, disappeared. More than that, he hated the Sith for their disrespect to Selkath laws, which shook his core.
As happened, Shaelas could not get the Republic or the Ahto City authorities to investigate the Sith and their actions, which included the disappearance of the Selkath youth.
Eventually, Shaelas met the amnesiac Padawan Aaron Klann, who he would soon recruit.
Leads were hard to find at first, but Klann managed to get information from an Iridonian mercenary. As it turned out, the Sith were responsible for the disappearances.
After learning the truth and convincing Shasa, Klann told the Selkath authorities the Sith's plot for corrupting the planet's youth. This proved his innocence.
Shortly after he was free, Klann returned to Shaelas with the news. Shaelas was amazed when Klann turned down his offer for 500 credits, claiming he was the noblest human he ever met. Shaelas then reported to the Selkath courts about the facts he discovered, giving him a fair clearance.