DNA Fingerprinting

DNA Fingerprinting are a scientific way to identify a person based on the information contained in a DNA molecule. It uses advanced molecular techniques to identify or establish a link between two individuals by analyzing micro satellite sequences. Like the potential fingerprints at our fingertips, each individual has a unique DNA fingerprint. Traditional fingerprints can be modified by plastic surgery, but DNA is present in almost every cell of the human body and cannot be altered by any known treatments. Modern molecular biology techniques can generate DNA fingerprints from trace biological samples such as blood, saliva, hair, bone teeth, tissue samples, and semen. The current method of DNA fingerprinting using micro satellite sequence promises to identify an individual in the order of one in a trillion or even more. The first DNA typing method was described as DNA fingerprinting and was later given many names, such as genetic fingerprinting, DNA testing, and DNA typing. In today's language, it is best known as DNA profiling.

The introduction of DNA profiling technology into the judiciary was an important step forward and, in fact, revolutionized the criminal justice system. This technology is considered one of the most important discoveries of the last century. This technology has proven extremely useful in violent crimes such as murder and rape, in resolving disputes over paternity and maternity, and in identifying disaster victims. Recent advances in DNA profiling technology have enabled law enforcement agencies to resolve cases that were previously thought to be unsolvable. The technology was first admitted as evidence used in the United Kingdom in 1987. Since then, it has become an integral part of the criminal justice system worldwide. More than 150 countries worldwide have already adopted this technology, and Bangladesh as a country introduced the technology in 2006. [Sharif Akhteruzzaman]

See also dna.