Which of the following is NOT a method used in latent print enhancement?

The amination process is not recognized as a method used in latent print enhancement. Latent print enhancement techniques are focused on making the invisible or difficult-to-see prints more visible for analysis, and each method has specific chemical or physical processes associated with it.

Cyanocrylate fuming is widely used in forensic science; it involves the use of cyanoacrylate (often referred to as "super glue") to develop latent prints on non-porous surfaces, forming a visible white residue that highlights the print.

Fluorescence examination is another popular technique that utilizes specific wavelengths of light to make latent prints shine under different lighting conditions. This method is particularly effective for detecting prints on various surfaces that do not yield clear results with traditional methods.

Sublimation of salts refers to the process of using certain chemicals that sublimate (transition from solid to gas) to enhance prints, particularly those made from sweat which contains salts and other components. This method can reveal prints on various surfaces as well.

Given these established methodologies, the amination process does not currently fall into the recognized techniques specifically associated with latent print enhancement, making it the correct choice in this context.