Answer:
Step-by-step explanation:
When using Ninhydrin to develop a print you should photo it asap
Developing Fingerprints with Ninhydrin
When using Ninhydrin to develop a fingerprint, it is recommended to photograph it as soon as possible. This is because the developed fingermarks can benefit from the use of color contrast imaging, and delaying the photography process may result in unwanted background effects due to photoionization .
Ninhydrin is a commonly used treatment for developing fingermarks, particularly when the amino acids in the print can benefit from color contrast imaging . It is worth noting that latent prints developed with ninhydrin on paper can persist for surprisingly long periods, even on surfaces that have not been touched for a decade or more .
Photographing the developed print promptly allows for better preservation and documentation of the fingerprint. This step is crucial in forensic investigations to ensure accurate analysis and comparison of fingerprints.
Remember, the use of Ninhydrin and the process of developing fingerprints are important techniques in forensic science for identifying individuals and solving crimes.