When Senliten is fully restored and Dealing with Scabaras is completed it is possible to travel with Leela to Senliten and have a talk with them. This is a requirement to start Do No Evil.
Shortly after moving to Al Kharid with her father, she met the thief Ozan. He had been attracted to her room by her singing The Cactus Lily and attempted to woo her. When that failed, he fled and was captured in the Palace's treasure room. He was subsequently banished from Al Kharid.
There is currently a glitch, where if you took Leela to Senliten's tomb before some of the new quests, such as Diamond in the Rough, in the quest log, it will not count towards the requirements for Do No Evil.