Fingerprints were lifted off of threatening notes as part of a bank robbery which led the FBI to the robbery suspects. Fingerprints are still primarily used for evidence in cases and it is amazing that fingerprints can be lifted from various items. The full article is available below.
http://www.sun-sentinel.com/local/broward/pompano-beach/fl-sb-pompano-bank-robberies-arrest-20170822-story.html