A scent transfer unit is a vacuum device used to collect scent evidence from a crime scene or item of evidence. The unit was invented by Bill Tolhurst (a former president of the National Police Bloodhound Association) while working for the Niagara County Sheriff's Department.
A scent transfer unit is a vacuum device used to collect scent evidence from a crime scene or item of evidence. The unit was invented by Bill Tolhurst (a former president of the National Police Bloodhound Association) while working for the Niagara County Sheriff's Department.
Source: Wikipedia "Scent transfer unit" · CC BY-SA 4.0
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