Lieutenant Girard is an Alliance officer working on the Citadel, possibly alongside C-Sec. He calls Commander Shepard to help with a young woman, Talitha, who is at the Alliance docking bay with a pistol, claiming she wants to die. Girard has a sniper in place, but asks Shepard to find a peaceful solution—he seems quite fond of Talitha and does not want to hurt her. He will give Shepard a sedative, asking Shepard to calm Talitha and convince her to take it.
If Talitha takes the sedative, Lieutenant Girard will make arrangements to take her to a psychiatric facility. Alternatively, Shepard can order Girard to alert the sniper to shoot Talitha.