( Scent Transfer Unit )
What is the STU-100 ?
The Scent Transfer Unit (STU-100) was specifically designed for Forensic Specialists,
Investigators, Evidence Response Teams, Identification Departments and Scent Dog Handlers.
The Scent Transfer Unit allows law enforcement to collect evidence from any item without
destroying fingerprints on the item, collect trace evidence at a crime scene without contamination,
collect scent evidence from hard to access places not accessible to a search dog and gives law
enforcement a scent pad to store in scent banks for future use on repeat
The STU-100 was designed and built to assist law enforcement with the collection of scent and
trace evidence. It provides a method of preserving evidence for extended periods of time because
scent is evidence. The STU-100 requires common sense, good judgement, a sound working
knowledge of scent and what it takes to protect it from contamination. Properly handled and
operated, the STU-100 can produce unbelievable results.
History of the
"The Scent Machine"
In the late 80'S I tried using a vacuum process to collect the scent into a sterile gauze pad that I
could move around and better yet, I could collect the scent and keep it for long periods of time.
A number of 110 models were tested. I called them "Scent Transfer Machines" however as with
most first inventions they were big, heavy, cumbersome and while they did the job well they were
difficult to handle.
This is Larry Harris, Bill Tolhurst's Partner with his prototype version of the STU.
This is the STU100 we know today.
For more Information on the STU-100 contact:
Tolhurst Big "T" Enterprises
EAST COAST OFFICES - Information Only
383 Willow Street , Lockport,New York 14094-5512
WEST COAST OFFICES - All Orders and Sales
1807 Highland Dr. , Newport beach, CA 92660-4402
(949) 548-0782 - FAX (949)645-9710