1. Collection of samples: Blood drops, hair, teeth, nails, semen or semen, body parts etc. are collected from crime scene.
2. Increasing the quantity of samples: For the identification of criminals, the quantity of samples should be collected from the crime scene. If the amount of sample collected is too low, the amount is amplified in the PCR process.
3. Sequencing of samples: Adenine, guanine, cytosine and thymine bases of DNA molecules are identified in the process of genome sequencing from the obtained samples.
4. Suspect sequencing: Adenine, guanine, cytosine and thymine bases in DNA molecules of crime suspects are identified.
5. Criminal identification: The sequence of the sample DNA is matched to the sequence of the suspect. Criminals are identified by matching DNA sequences.