ELECTROSTATIC LIFTING

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Technique Name:
ELECTROSTATIC LIFTING
Surface Used On:
Dry Porous & Non-porous surfaces.
Sensitive To:
Dust impressions.
Development Color: Method to Record: Hazard: Protective Clothing: Fume Hood Use:

Not

Electric Shock

Not
Reagent Characteristics

Development Complete When:

Source of Error:

Incompatibilities:

Precautions:

Storage Container:

Safety:

Recommendations:


Similar Reagents



Sequential Reagents
(Not necessarily in this order.)



ELECTROSTATIC LIFTING FORMULA:
Not applicable.

PROCEDURE OF APPLICATION
1. Place the lifting film over the surface
bearing the dust impression.
2. Place the grounding device adjacent 
to the lifting film.
3. Charge the lifting film with the charger
unit.
4. The dust impression is transferred to 
the lifting film by the electrostatic 
charges.
5. Carefully remove the lifting film
from the surface.
6. View the lifted result using 
white oblique light.
7. Photograph opaque lifting films using 
white oblique light.
8. Photograph transparent lifting films 
using transmitted light or darkfield 
lighting methods.



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.
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 Vaccuum Box" can be utilized to recover dust impressions.
Supporting Reference Materials:
1. Advances in Fingeprint Technology 2nd. Ed., Lee, H.C. & Gaensslen, R.E., CRC Press, Boca Raton, FL., 2001.
2. Manual of Fingerprint Development Techniques 2nd. Ed., Home Office - Police Scientific Development Branch, White Crescent Press, Ltd., Luton, England, 2001.
3. Technical Notes, Lightning Powder Co. Inc., Salem, OR., 2001.

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