How long do fingerprints last?

Answer

Each human has a unique set of fingerprints, and every person will have the same unique prints for their entire lives. The length of time a print lasts on a specific object depends on the object's surface characteristics and environment.

In forensic science, a fingerprint that gets left on any given surface after being touched is known as a latent fingerprint. These fingerprints are commonly used in criminal investigations, and they can last for days at a time. Made of water and biological components such as triglycerides and fatty acids, latent prints tend to loose their water content after about 24 hours. However, there are multiple methods for preserving latent prints, and these preserved images can last indefinitely. Latent fingerprints tend to disappear most quickly from nonporous materials that are exposed to humidity and high temperatures.

Explore this Topic
Fingerprints can stay on an object for a very long time. It depends on if the object is disturbed, exposed to liquids and what the surface it is. On a porous surface ...
On average, periods or menstruation is supposed to last for three to seven days. For some women it may stay for longer or for others for a shorter duration. If ...
The constitution has lasted so long because of the value which is placed on it. Citizens value their freedoms and therefore send a message to government not to ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com