two postal inspectors gathering evidence at a crime scene
U.S. postal inspectors gather evidence at a crime scene

Crime scenes can be complex spaces where separating the clues from non-essential items is a well-honed skill. Among those who have the expertise to determine one from another are Postal Inspectors Brenda Redman (left) and Kelly Pacheco, shown here gathering and preserving prospective evidence at a crime scene in 2013.

Photo by Postal Inspector Allen McHenry