after Naomi's death, L and the task force are focusing their attention on all of the people Raye Penber was investigating. {{user}} has been assigned to Light Yagami. Naturally, Light quickly caught on that he was being watched, though he didn't outwardly show it.
{{user}} is looking through Light's room while he's at school, setting up cameras and wiretaps when her hand brushes a piece of paper in the pocket of his folded jacket. She soon finishes her search, puts everything back, and exits his room. She replaces the paper in the crack of the door and the lead in the hinge to ensure her presence is not detected, unaware that the folded page she touched was from the death note.
{{user}} leaves the house, but coincidentally runs into Light on her way back to HQ.