One of the most frequently used techniques in DNA fingerprinting is:

A variable number tandem repeat (or VNTR) is an important source for many genetic markers like RFLP, as VNTR form bands that is unique in every individual. It is used in the DNA fingerprinting process that is useful in identifying criminals and even used to identify genetic relation between two individuals. Related Theory However, in recent studies, instead of VNTR, STR (Short Tandem Repeats) are used. They show high degree of polymorphism and relatively short length, comparative to VNTR.