DAVTECH Analytical Services (Canada) Inc

Phenolphthalein is one of the most commonly used chemicals in the field and forensics laboratory to indicate the presence of blood.

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Using TTF's Phenolphthalein Presumptive Blood Tests is a simple and reliable way to presumptively determine the presence of blood at a crime scene. 

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Physical Developer (PD) is a silver-ion reagent that reacts with the lipids, fats, and oils that are present in latent print residues. It is a very useful and successful method of latent development and is used last in the sequence of chemical development techniques.

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RAM Fluorescent Stain is a mixture of Rhodamine 6G, Ardrox, and MBD and is used after the cyanoacrylate development of prints.

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When searching for evidence using a forensic light source, an investigator may uncover a fluorescent stain that they suspect to be seminal fluid. While still at the scene, it is useful to perform a presumptive test for the presence of semen on the suspected stain.

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TTF's SERO-STIX Presumptive Blood Tests are a fast and easy way to presumptively identify blood at a crime scene.

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TTF's Tetramethylbenzidine (TMB) Blood Test Kit is a highly sensitive presumptive test used to determine whether a suspected stain is blood or not. It is often used as a confirmatory test after a phenolphthalein blood test.

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TTF's TMP (thymophthalein monophosphate) Presumptive Semen Test Kit is a reliable laboratory test for presumptively indicating the presence of semen (acid phosphatase) on a suspected stain.  TMP tests are the best-suited method for testing suspected stains, as it is more sensitive to the presence of acid phosphatase than other presumptive tests.

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Serial number restoration by the etching method is commonly used to recover serial numbers or other obliterated identifying markings on objects such as weapons, tools, cameras, electronic equipment, machinery, or automotive engine blocks or frames. When a serial number is stamped into a metal surface, the underlying metal grains are compressed and deformed deeper than the impressed number or mark.

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1,2-Indanedione is a ninhydrin analogue that responds to amino acids and causes latent prints to fluoresce under a forensic light source. It is similar to DFO Spray but is reported to develop 46% more latent prints.

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Tri-Tech Forensics 5-Sulfosalicylic Acid Blood Fixative is highly recommended for setting bloody prints or footwear impressions before performing enhancement techniques that utilize an aqueous based formulation.

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Acid Fuchsin, also known as Hungarian Red, is an excellent stain for the enhancement of bloody fingerprints or footwear impressions.

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Acid Violet 17 is one of the more effective stains for the enhancement of bloody fingerprints or footwear impressions. Traces of blood and other protein-based fluids will be revealed in a visible purple-coloured print.

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Acid Yellow 7 is one of the newer and more effective stains for the enhancement of bloody fingerprints or footwear impressions. Staining reveals a yellowish-coloured print. It is for use on non-porous surfaces.

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Adhesive-side processing is an easily performed and effective method of developing latent prints on the adhesive or sticky side of objects such as adhesive tape, duct tape, self-adhesive postage stamps, and labels.

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Contact Davtech

Ontario Office: Monday to Friday, 9 AM - 5 PM EST
Quebec Office: Monday to Friday, 9 AM - 5 PM EST
Alberta Office: Monday to Friday, 9 AM - 5 PM MST (-2 hrs from EST)

DAVTECH Offices

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133 Walgreen Road, Ottawa, ON K0A 1L0

Tel: (613) 831-6009, Mail: sales@davtech.ca
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Davtech - Western Region

103 - 541 Kingsview Way S.E., Airdrie, AB T4A 0C9
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Davtech - Quebec

8617 Dalton Road, Mount-Royal, QC H4T 1V5