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Can anyone help me answer this discussion question please and give a suggestion about how to...

Can anyone help me answer this discussion question please and give a suggestion about how to find so?

"There are many different methods used to lift fingerprints. Some are better for circumstances than others. Pick a method of lifting fingerprints and comment on the pros and cons of the method. Be sure you include the chemistry that allows that method of fingerprinting to work."

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Answer #1

Cyanoacrylate method is a commonly used forensic science technique which uses the vapors of super glue to develop latent fingerprints.  A latent fingerprint is a fingerprint left on a surface as a result of the oils and perspiration from the pores of the finger.   

The main steps in Cyanoacrylate method are:

  • Place cyanoacrylate and water into the developing chamber on a warming plate
  • Now place the piece of evidence into the developing chamber and wait for the fingerprint to develop.

The chemistry involved is,

Pro: The hard print can be lifted multiple times

Con: Clarity may be lost in the print

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