Abstract: A blind trial involving 60 blood samples has been successfully carried out. By using minisatellite probe 33.15 we have obtained satisfactory DNA fingerprints. After statistical treatment the probability of individual specificity is calculated as 5.6×10~(-12). Futhermore, we have studied blood, semen and bloodstain of the same individual by probe 33.6, resulting identica DNA fingerprints. It shows somatic and germ-line stability and completely specific to individual. The viewpoint of international standardization of DNA fingerprints has been first proposed in this paper.

Key words: DNA fingerprints, minisatellite probe, hypervariable region, probability of individual specificity