Certain fingerprint is a type of fingerprint that is not visible to the naked eye. It is also known as a LATENT fingerprint and is created when an individual touches a surface, leaving behind sweat, oils, and other residue from their skin. This type of fingerprint can be detected using special techniques such as powdering, fuming, and chemical treatments. LATENT fingerprints are often used in criminal investigations to identify suspects and link them to a crime scene.