Scent Identification Procedures in the U.S. Have Different History and Different Procedures From Those Conducted in Europe
Summary: Scent lineups, designed to use a dog’s behavior to establish that two scents, one from a crime scene and one from a suspect, derive from the same person, have been conducted in radically different ways in the U.S. and Europe. In the U.S., scent lineups are often performed outdoors, in fields or parking lots, while in Europe they have for decades only been conducted indoors, often in canine forensic laboratories. In the U.S., lineups of individuals, as opposed to scents taken from individuals, have been part of standard practice in some jurisdictions until recently, but this has not been done in Europe for decades. Tracking of a suspect through a police station has been accepted as a formal identification procedure in the U.S., but not in Europe.