Gilbert Dui Attorney Whether it involves challenging evidence, questioning witness credibility, or exploring legal precedents, the defense attorney's strategic acumen is vital in constructing a robust defense. Protection of Constitutional Rights: Individuals accused of crimes are entitled to certain constitutional rights, and it is the duty of a criminal defense attorney to safeguard these rights. From the right to a fair trial to protection against unlawful searches and seizures, defense attorneys in Gilbert act as advocates, ensuring that their clients are treated justly.