In 2365, Krit and associates Hain, Larell, Nahsk, and Morn, planned and executed the Lissepian Mother's Day Heist, a notorious robbery that occurred on the planet Lissepia, in which one thousand bricks of gold-pressed latinum was stolen from the planet's Central Bank. Though all thieves managed to escape the authorities on Lissepia, Morn double-crossed Krit and the others by keeping the latinum for himself. He let him go for fear of being pursued by authorities.
In 2374, the statute of limitations expired for the crime, so he decided to go after Morn with Nahsk, however, they learned he had died. Discovering he left everything to Quark, they traveled to Deep Space 9. They broke into Quark's quarters and pretended to be his business partners to whom Morn had a debt. After being haggled down to half of the total latinum, they stayed close to Quark as he tried to find the money. Eventually, they found out that the other thieves in their group had also approached Quark to get the latinum, and so they all agreed to split it. However, when they all received the latinum in a cargo bay, they pulled phasers on each other and started firing. He was wounded and arrested with the others by security. No one realized Morn had extracted the latinum and stored it in his second stomach. (DS9: "Who Mourns for Morn?")
The script for "Who Mourns for Morn?" describes both him and his brother as "well-dressed, but there's something sinister about them that says organized crime." Of Krit himself, it says, "When Krit speaks, it's in a calm, reasonable voice that has an underlying edge to it."