US2013118276A1PendingUtilityA1

Trace evidence collection method

34
Individually held — no corporate assignee on recordPriority: Nov 20, 2006Filed: Jul 10, 2012Published: May 16, 2013
Est. expiryNov 20, 2026(~0.3 yrs left)· nominal 20-yr term from priority
Inventors:Joelle N. Duval
G01N 2001/2833G01N 1/02G01N 2001/007
34
PatentIndex Score
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Claims

Abstract

A method of collecting trace evidence comprises covering a surface with a sheet material comprising a sheet of material having a first side and a second side. The first side comprises an active side exhibiting an adhesion peel force after activation by a user which is greater than an adhesion peel force exhibited prior to activation by a user and which is sufficient to adhere to a target surface. The sheet of material is sufficiently flexible to conform readily to a desired surface and has sufficiently small resiliency that it does not exert undue restorative forces which would tend to cause the sheet of material to break contact with the desired surface. The sheet material is pressed on the target surface. The sheet material is removed from the surface wherein trace evidence adheres to the sheet material.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of collecting trace evidence comprising:
 covering a surface with a sheet material comprising a sheet of material having a first side and a second side, said first side comprising an active side exhibiting an adhesion peel force after activation by a user which is greater than an adhesion peel force exhibited prior to activation by a user and which is sufficient to adhere to a target surface, said sheet of material being sufficiently flexible to conform readily to a desired surface and having sufficiently small resiliency that it does not exert undue restorative forces which would tend to cause said sheet of material to break contact with such a desired surface;   pressing the sheet material on the target surface;   removing the sheet material from the surface;   wherein trace evidence adheres to the sheet material; and   covering the sheet material with a transparent film.   
     
     
         2 . The method of  claim 2  wherein the sheet of material is non-porous. 
     
     
         3 . The method of  claim 2  wherein the sheet material is pressure sensitive. 
     
     
         4 . The method of  claim 2  wherein the sheet material is clingless. 
     
     
         5 . The method of  claim 2  further comprising removing the transparent film. 
     
     
         6 . The method of  claim 2  further comprising analyzing the trace evidence. 
     
     
         7 . The method of  claim 2  further comprising electronically scanning the sheet material.

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