Various chemical, physical and photographic methods are used to develop latent fingerprints. The processing methods used are dependent upon the type of surface on which the print may be.
HOW ARE FINGERPRINTS USEFUL IN CRIMINAL INVESTIGATIONS.
Fingerprints can place people at a scene or in contact with objects used in crimes and may provide leads for father investigation or evidence useful in court.
A latent print examiner has to complete a 4 year degree usually in a field of science such as biology or chemistry. Currently, several schools have forensic science programs.