Used primarily in forensic science for the detection of latent fingerprints on porous surfaces. It reacts with amino acids present in sweat residues, producing a visible color change that enhances the visibility of fingerprints. Commonly applied in a solution form, it is particularly effective on paper, cardboard, and other cellulose-based materials. Its use is favored due to its sensitivity and ability to develop clear, detailed prints that are crucial for identification purposes in criminal investigations. Additionally, it is often used in combination with other fingerprint development techniques to maximize the recovery of evidence.