Regular practice chests, on the north side of the room, require level 26 Thieving to be opened and can be opened for 30 Thieving XP and one Hanky Point (a single blue hankerchief). They may take a little time to open, but it is recommended to be patient and keep trying. The doors to the jail cells containing these chests give 210 XP for opening. They also require level 26 Thieving to open and do not require a lock pick to open. Due to the increased xp and hanky points, the complex chests to the south are considerably more useful when training.