One major problem in crime is the mis-representation for ethnic minorities and young people. This creates an anti-police attitude. In fact, two in five black men already have their DNA on record compared to fewer than one in ten whites. Justice cannot properly be given to those in a majority gender or ethnicity that holds more protection compared to the minorities. DNA profiling can eliminate the bias in crime by giving solid evidence towards who the perpetrator is. A computer does not discriminate against those of different color, age, and gender than the majority.
I do agree with you that profiling is unfortunate. However, the way I see it, profiling is also an unfortunate necessity. If you were a TSA agent responsible for the lives of travelers at some airport and you had a number people to inspect, you would probably have to inspect the more middle easterners, not because you're prejudiced, but because, statistically speaking, it is that minority that happens to cause more terrorist acts than the other minorities. It's unfortunate, but a necessary trade off if you are responsible for the protection of lives. While DNA profiling does eliminate bias, DNA profiling is an unstable and fragile system. Criminals could plant DNA samples of innocents and those innocents would suffer as a result. DNA profiling could be used as a tool, but shouldn't replace the system already in place.