Superglue polymerizes on latent fingerprints to produce what color deposit?

When superglue (cyanoacrylate) fuming is used in the processing of latent fingerprints, the cyanoacrylate vapor reacts with moisture and other substances present in the latent print residue. This process polymerizes the cyanoacrylate and results in the formation of a visible white deposit on the fingerprint.

The white deposit serves not only to enhance the visibility of the fingerprint for analysis but also allows for better clarity in preservation and subsequent lifting techniques. The contrast it provides against the background makes it easier to visualize the fingerprint details for identification purposes.

While other colors may be indicative of different techniques or substances used in forensic analysis, the specific outcome of superglue fuming in maintaining and revealing latent fingerprints is distinctly a white deposit. This established method is widely recognized and utilized in forensic science, thereby affirming the correctness of the answer.