What type of fingerprint is left when a finger presses against a surface with sufficient force to transfer some moisture or oil?

When a finger presses against a surface with enough force to transfer moisture or oil, it leaves behind a latent print. This type of print is typically not visible to the naked eye and requires special techniques or substances to be revealed. Latent prints are created by the natural oils and sweat in the skin, which can form a detailed pattern on the surface that the finger comes into contact with.

In contrast, visible prints are those left by a finger that has come into contact with a pigmented or contrasting substance, making them easier to see without enhancement. Plastic prints are three-dimensional impressions left in a material, such as clay or wax, and are more tangible than latent prints. Impression prints could imply a broader range of marks made by a finger or object, but they do not specifically denote the transfer of oils and moisture as latent prints do.

Hence, the process of creating a latent print involves the delicate transfer of oils and moisture without the necessity of any additional substances, aligning perfectly with the description provided.