Solution:

• The probes used for DNA fingerprinting are usually prepared from minisatellite or microsatellite DNA
• Any piece of DNA sample found at a crime scene can be analysed for the level of polymorphism in the non-coding repetitive sequences.
• After the DNA profile is traced, it becomes easier to find the criminal by performing the DNA fingerprinting for the suspects.
• Apart from crime scenes, Fingerprinting applications also prove useful in finding the parents of an unclaimed baby by conducting a paternity test on a DNA sample from the baby.