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.| Chemical Name: STICKY-SIDE POWDER |
Surface Used On: Tape surfaces. |
Sensitive To: Sebaceous & lipid components. |
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Reagent Characteristics Development Complete When: Source of Error: Incompatibilities: Precautions: Storage Container: Safety: Recommendations: Similar Reagents Sequential Reagents (Not necessarily in this order.) Abridged Reagent Sequence | Forensic Light | Gentian violet | *** Sticky-Side Powder *** | Forensic Light |
STICKY-SIDE POWDER FORMULA:1. Place 1 teaspoon of powder in a shallow jar or mixing bowl. 2. Equal parts of Photo-Flow and water are mixed with the powder to form a THIN paste.PROCEDURE OF APPLICATION 1. Brush this mixture with a camel hair brush onto the tape's adhesive surface. 2. Wait 30 to 60 seconds. 3. Rinse under a gentle stream of cold tap water. 4. Allow tape to air dry. 5. Photograph any developed ridge detail. |
Ridge Detail Visualized by: Visible chemical/stain reaction. Reagent Applicabilities: Non-Porous surfaces Post-Cyanoacrylate Tape surfaces Other Chemical Name(s): None Working Solution Shelf-life: Prepared as needed. |
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Process Summary: The reagent is prepared as a paste, then is brushed unto the adhesive sides of tape surfaces. This reagent is considered to be a more economical alternative to other adhesive-tape processing methods. Cyanoacrylate fuming does not inhibit the use of this reagent. | ||||||||||||
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Accepted Deviations: Commercial kits are available for use. The reagent may be mixed vigorously to create a foam solution. The reagent may be repeatedly applied, if necessary, to improve the detail. | ||||||||||||
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Supporting Reference Materials: 1. Minutiae Magazine, Summer Special 1994, Issue No. 24, pg.7. 2. "Chemical Formulas and Processing Guide for Developing Latent Prints", U.S. Dept. of Justice, pg. 47-48, 1994. 3. Advances in Fingeprint Technology 2nd. Ed., Lee, H.C. & Gaensslen, R.E., CRC Press, Boca Raton, FL., 2001. 4. Manual of Fingerprint Development Techniques 2nd. Ed., Home Office - Police Scientific Development Branch, White Crescent Press, Ltd., Luton, England, 2001. 5. Technical Notes, Lightning Powder Co. Inc., Salem, OR., 2001. | ||||||||||||