A librarian assistant at the Lindsay Library, Biesterfeld was on the job late last month when she noticed 39-year-old Donny Chrisler downloading child porn on library computers. Biesterfeld told her supervisor Judi Hill, who instructed her to issue Chrisler a warning. Instead, Biesterfeld called police the next day. A few days later, Chrisler returned and Biesterfeld noticed he was once again viewing child porn. She notified police, who came and arrested Chrisler on the spot.
It actually gets worse. article here