A private investigator santa monica ca uses special tools and devices when performing their duty. This is advantageous on their part because the work that they do are not easy. That is why they operate using these gadgets because it help them to track as many subjects as possible at a time. The main job of a P.I is to do surveillances to gather information without being noticed. Yes everything should be done discreetly. A good P.I knows what are the codes and conduct to follow. They have been trained to religiously keep good trails on those private investigation career ethics. They need to do it.