I am getting DNA samples from these people because they are prime suspects at the scene (at the exact time and place). Besides, if there is any evidence left over; it should be stored and used for further research.
DNA profiling (also called DNA fingerprinting) is the process of determining an individual's DNA characteristics. ... DNA profiling is a forensic technique in criminal investigations, comparing criminal suspects' profiles to DNA evidence so as to assess the likelihood of their involvement in the crime
