Defense lawyers possess knowledge of the legal system compared to other people. They can protect people from hefty penalties. They can handle cases better than most and save time and money.
The disadvantages can be seen through ethics, morals, or emotions. An example is being emotionally involved in a case, which will give yourself a dilemma between following your own consciousness or following the law.
Forensic scientists can use DNA profiles to identify criminals or determine parentage. Some potential challenges may be using wrong methods, the role of human error in interpreting the results.
