foster + freeman

Description

The first of its kind, the TFD-2 is an automated, high-throughput device capable of developing fingerprints on large quantities of documents.

Evidence is placed on the motor driven conveyor and passed through the TFD-2 optimised heating element. The action of briefly raising the temperature of the document causes a chemical reaction between the latent fingerprint and the papers surface producing a fluorescent by-product that is visible under intense visible light (Crime-light Blue or Crime-light Blue/Green with appropriate filters)/

Operated via touch panel display the user has complete control over the progress of development through variation of conveyor speed and heat source intensity. Evidence subjected to thermal development is safeguarded by conveyor jam detection and a non-contact IR sensor for the accurate monitoring of paper temperature. The virtually contactless kevlar mesh document support greatly reduces the risk of cross-contamination..

In crimes where large volumes of office paper must be examined the TFD-1 dramatically reduces search times and manpower requirements. 

The process of thermal development can be used in the laboratory or at the crime scene and offers the crime scene investigator with many advantages over traditional methods of fingerprint development:

● Latent prints can be detected in seconds

● No chemical process required 

● Virtually contactless system reduces risk of cross-contamination 

● High-throughput reduces search times

● Visible prints feature excellent ridge detail and contrast

● Can be used sequentially with chemical treatments including ninhydrin and DFO

● For use at scene of crime or laboratory

Pat. Pending # 12/745345

Applications

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