Isaac Asimov, prolific writer of Science Fiction and Non-Fiction books (more than 500!) and father of the term "robotics" realized very early on that "intelligent" robots could cause as much harm as good, if "programmed" the wrong way.
A dragnet investigation is an attempt to find a person or thing (such as a car) by defining a certain area and the physical aspects of the person or thing sought and systematically checking every matching person/thing one comes across.
And everyone remembers the 1987 film by the same name, right? Right?