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Development Color:
Vertical Divider
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Method to Record:
Vertical Divider
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Hazard:
Vertical Divider
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Protective Clothing:
Vertical Divider
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Fume Hood Use:
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Formula
Procedure of Application
Development Complete When
Source of Error
Incompatibilities
Precautions
Storage Container
Safety
Recommendations
Sequential Reagent
Formula
Not applicable. Procedure of Application
Development Complete When
The lifting film is viewed under white oblique light to observe for dust impression detail. Source of Error
Electrostatic lifting devices do not work on wet or moist surfaces. A good ground connection is necessary for proper performance. Incompatibilities
Extremely dusty underlying surfaces. The device cannot be operated in wet or very moist conditions. Precautions
Be sure to let electrostatic charges dissipate before attempting to remove the lifting film. The dust impression on the lifting film is 'mirror-reversed', and may need to be photographically reversed before comparisons. Storage Container
Lifting films can be stored in cardboard boxes. Safety
Be certain not to handle or touch the charging probes when the device is in operation. Electric shocks can occur when recovering dust impressions from metal surfaces. Recommendations
View the lifted impressions using oblique white light in a darkened room. Re-charge the charger unit on a regular schedule. Sequential Reagent
Not Necessarily in this Order: Vertical Divider
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Chemical Name
Electrostatic Lifting Surface Used On Dry Porous & Non-Porous Surfaces Sensitive To Dust Impressions Vertical Divider
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Ridge Detail Visualized by:
Electrostatically recovered impressions Reagent Applicabilities: Non-Destructive Dust impressions Porous sufaces Non-Porous surfaces Other Chemical Name(s): Electrostatic Dust Print Lifter Electrostatic Dust Mark Lifting Device Dustmark Electrostatic Lifting Kit D.E.L.K. Dustprint Lifter. |
Process Summary:
A non-destructive process whereby an electric field is developed on a sheet of lifting film which attracts dust particles to the film. The device is capable of recovering dust impressions from a variety of porous and non-porous surfaces. Dust impressions not visible to the naked eye are often recovered with this device.
A non-destructive process whereby an electric field is developed on a sheet of lifting film which attracts dust particles to the film. The device is capable of recovering dust impressions from a variety of porous and non-porous surfaces. Dust impressions not visible to the naked eye are often recovered with this device.
Accepted Deviations:
Numerous electrostatic lifting devices are available. Both ridge detail and footwear impressions may be recovered with this device. Both the "ESDA" and "Electrostatic Vacuum Box" can be utilized to recover dust impressions.
Numerous electrostatic lifting devices are available. Both ridge detail and footwear impressions may be recovered with this device. Both the "ESDA" and "Electrostatic Vacuum Box" can be utilized to recover dust impressions.
Supporting Reference Materials:
- Advances in Fingeprint Technology 2nd. Ed., Lee, H.C. & Gaensslen, R.E., CRC Press, Boca Raton, FL., 2001.
- Manual of Fingerprint Development Techniques 2nd. Ed., Home Office - Police Scientific Development Branch, White Crescent Press, Ltd., Luton, England, 2001.
- Technical Notes, Lightning Powder Co. Inc., Salem, OR., 2001.