What type of fingerprint is formed from friction ridges or corrugated lines on fingers, becoming visible on certain surfaces?

What type of fingerprint is formed from friction ridges or corrugated lines on fingers, becoming visible on certain surfaces?

• A. Plastic prints
• B. Latent prints
• C. Patent prints
• D. Visible prints

Answer: (C)

The type of fingerprint that is formed from friction ridges or corrugated lines on fingers and becomes visible on certain surfaces is known as patent prints. Patent prints are those that are easily seen without any enhancement because they have been made in a medium such as ink, blood, grease, or dust. When a finger with some substance on it touches a surface, it leaves behind a clear impression that can be readily observed, making it distinct from other types of fingerprints. In contrast, latent prints refer to impressions that are typically invisible to the naked eye because they are formed by the natural oils and sweat on the skin without the presence of any visible medium. They often require special techniques or chemicals to be detected. Plastic prints are three-dimensional impressions left in materials such as wax or soft substances, and visible prints describe prints that are simply visible but may not conform to the specific forms of latent or plastic prints. Therefore, patent prints are specifically associated with the visibility of fingerprints on surfaces due to contact with a substance, clearly identifying them as the correct choice.

The type of fingerprint that is formed from friction ridges or corrugated lines on fingers and becomes visible on certain surfaces is known as patent prints. Patent prints are those that are easily seen without any enhancement because they have been made in a medium such as ink, blood, grease, or dust. When a finger with some substance on it touches a surface, it leaves behind a clear impression that can be readily observed, making it distinct from other types of fingerprints.

In contrast, latent prints refer to impressions that are typically invisible to the naked eye because they are formed by the natural oils and sweat on the skin without the presence of any visible medium. They often require special techniques or chemicals to be detected. Plastic prints are three-dimensional impressions left in materials such as wax or soft substances, and visible prints describe prints that are simply visible but may not conform to the specific forms of latent or plastic prints. Therefore, patent prints are specifically associated with the visibility of fingerprints on surfaces due to contact with a substance, clearly identifying them as the correct choice.