These Gellifters are used mainly to lift fingerprints and to make comparison shoeprints. Their advantage is that they provide positive image of a print.
Unlike tape products for lifting prints, the Gellifter has a low-tack adhesive layer which is thick  enough to lift complete prints from rough or polluted surfaces. Fingerprint powder and impurities that may remain on a print after powdering do not cause missing spots in the lift due to bubbles caught between the adhesive layer and the surface.
 
Applications:

• Fingerprints developed with fingerprint powders (to obtain a positive image)
• Comparison shoeprints