Plastic Prints~
Plastic prints are fingerprints that have been impressed onto a surface. These prints can be seen on anything soft or malleable, for the print leaves an indention. For instance, Plastic prints can be seen on gum, something newly painted, play doe, wax, and/or cement that has not yet dried. Obviously, these types of fingerprints are visible and do not need any enhancements to be seen.
Direct Prints~
Direct Prints are visible fingerprints that occur when a foreign substance such as blood or oil is on a finger which then leaves a print. These prints are usually seen on smooth surfaces such as doorknobs, or tables. They are formed by dust particles attached to the foreign substance that cling to the surface; no extra enhancements are needed to see these prints.
Latent Prints~
Latent fingerprint are caused from the perspiration from ones sweat pores on their finger. The prints are usually smudged causing a high percent error when trying to find the person who has that specific fingerprint; although, they are highly valuable because the convict has no idea he/she has left those fingerprints. Also, these prints need many enhancements to be seen because they are invisible to the human eye.
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