Hinge lifters come in many different color backgrounds to allow for the visualization
fingerprints developed with different color powders. The hinge lifter is placed on the
print and pressed down evenly. The lifted print is covered with the hinged cover and is
protected from scratches and dirt. Using a roller can sometimes help to smooth the cover
to avoid bubbles. An image of the fingerprint is obtained just as it was found.
When using lifters, it is important that the handler not get their own fingerprints on the
lifters. It is also important not to get air bubbles under the lifters. Bubbles destroy the
value of the print and obscure the fingerprint.
Your information is interesting, I wasn't aware of a roller method. However the text and it's green background aren't uniform like the rest of the blog, I would reccomed chaning this to give it a more consistent look.
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