Negative fingerprints are the absence of expected evidence or traces that would typically be found at a crime scene. This could include the lack of fingerprints, DNA, or other physical evidence that could help identify a suspect. Negative fingerprints can make it difficult for investigators to solve a case or link a suspect to a crime. **

Yes, fingerprints are not stored permanently and are typically deleted after they are used for identification purposes. This is done to protect individuals' privacy and ensure that their biometric data is not misused. Once the fingerprint has served its purpose, it is usually removed from the system to prevent unauthorized access or potential security breaches. **

Humans, apes, and some primates are known to have fingerprints. Koalas also have fingerprints that are very similar to human fingerprints, making them unique among marsupials. These animals have ridges and patterns on their fingers and toes that create distinct prints, just like human fingerprints. **

Fingerprints are generally considered to be permanent and do not change over a person's lifetime. However, they can be altered or damaged by injury, scarring, or certain skin conditions. In some cases, fingerprints can also fade over time due to aging or environmental factors. Overall, while fingerprints are generally considered to be long-lasting, they are not necessarily permanent and can be affected by various factors. **

There are a total of ten fingerprints on a person's hands - four on each hand and two thumbs. Each fingerprint is unique to an individual and can be used for identification purposes. The patterns of ridges and valleys on each fingerprint are formed during fetal development and remain unchanged throughout a person's life. **

It is extremely difficult to completely erase fingerprints, as they are unique to each individual and are formed by the patterns of ridges on the skin. However, there are some methods that can temporarily obscure or alter fingerprints, such as applying substances like glue, tape, or even superglue to the fingertips. These methods can make it more challenging for fingerprint scanners to accurately read the prints, but they are not foolproof and can be detected by forensic experts. It is important to note that attempting to erase or alter fingerprints with the intent to commit a crime is illegal and unethical. **

Fingerprints are examined from the moment a crime scene is discovered. Investigators collect fingerprints from surfaces where they may have been left behind by the perpetrator. These fingerprints are then analyzed and compared to known prints in databases to identify potential suspects. The examination of fingerprints is a crucial step in forensic investigations to help solve crimes and bring perpetrators to justice. **

Fingerprints are typically taken using a method called ink and roll. Here's how it is done: 1. The person's fingers are cleaned to remove any dirt or oils that could affect the quality of the print. 2. The person's fingers are then rolled in ink, ensuring that the entire fingerprint is covered. 3. The inked fingers are then rolled onto a fingerprint card or paper in a specific pattern to capture the unique characteristics of each fingerprint. 4. This process is repeated for each finger, ensuring that all fingers are properly recorded. 5. The fingerprint card or paper is then allowed to dry before being scanned or sent for analysis. Alternatively, modern technology has also made it possible to capture fingerprints electronically using devices like fingerprint scanners. These scanners use sensors to capture the unique patterns of a person's fingerprints without the need for ink. **